81 FR 48319 - Special Conditions: Avmax Aviation Services Inc., Bombardier Model DHC-8-100/-200/-300 Series Airplanes; Installed Rechargeable Lithium Batteries and Battery Systems
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 81, Issue 142 (July 25, 2016)
Federal Aviation Administration
Federal Register Volume 81, Issue 142 (July 25, 2016)
| Page Range | 48319-48321 | |
| FR Document | 2016-17428 |
[Federal Register Volume 81, Number 142 (Monday, July 25, 2016)] [Rules and Regulations] [Pages 48319-48321] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2016-17428] ======================================================================== Rules and Regulations Federal Register ________________________________________________________________________ This section of the FEDERAL REGISTER contains regulatory documents having general applicability and legal effect, most of which are keyed to and codified in the Code of Federal Regulations, which is published under 50 titles pursuant to 44 U.S.C. 1510. The Code of Federal Regulations is sold by the Superintendent of Documents. Prices of new books are listed in the first FEDERAL REGISTER issue of each week. ======================================================================== Federal Register / Vol. 81, No. 142 / Monday, July 25, 2016 / Rules and Regulations [[Page 48319]] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 25 [Docket No. FAA-2015-1087; Special Conditions No. 25-622-SC] Special Conditions: Avmax Aviation Services Inc., Bombardier Model DHC-8-100/-200/-300 Series Airplanes; Installed Rechargeable Lithium Batteries and Battery Systems AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions; request for comments. ----------------------------------------------------------------------- SUMMARY: These special conditions are issued for the Bombardier Model DHC-8-100/-200/-300 series airplanes. These airplanes, as modified by Avmax Aviation Services Inc. (Avmax), will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This design feature is rechargeable lithium batteries to replace the existing nickel-cadmium and lead-acid rechargeable batteries. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for these design features. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards. DATES: This action is effective on Avmax July 25, 2016. We must receive your comments by September 8, 2016. ADDRESSES: Send comments identified by docket number FAA-2015-1087 using any of the following methods:Federal eRegulations Portal: Go to http://www.regulations.gov/ and follow the online instructions for sending your comments electronically. Mail: Send comments to Docket Operations, M-30, U.S. Department of Transportation (DOT), 1200 New Jersey Avenue SE., Room W12-140, West Building Ground Floor, Washington, DC, 20590-0001. Hand Delivery or Courier: Take comments to Docket Operations in Room W12-140 of the West Building Ground Floor at 1200 New Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. Fax: Fax comments to Docket Operations at 202-493-2251. Privacy: The FAA will post all comments it receives, without change, to http://www.regulations.gov/, including any personal information the commenter provides. Using the search function of the docket Web site, anyone can find and read the electronic form of all comments received into any FAA docket, including the name of the individual sending the comment (or signing the comment for an association, business, labor union, etc.). DOT's complete Privacy Act Statement can be found in the Federal Register published on April 11, 2000 (65 FR 19477-19478), as well as at http://DocketsInfo.dot.gov/. Docket: Background documents or comments received may be read at http://www.regulations.gov/ at any time. Follow the online instructions for accessing the docket or go to the Docket Operations in Room W12-140 of the West Building Ground Floor at 1200 New Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. FOR FURTHER INFORMATION CONTACT: Nazih Khaouly, FAA, Airplane and Flight Crew Interface Branch, ANM-111, Transport Airplane Directorate, Aircraft Certification Service, 1601 Lind Avenue SW., Renton, Washington 98057-3356; telephone 425-227-2432; facsimile 425-227-1149. SUPPLEMENTARY INFORMATION: The FAA has determined that notice of, and opportunity for prior public comment on, these special conditions is impracticable because these procedures would significantly delay issuance of the design approval and thus delivery of the affected airplanes. In addition, the substance of these special conditions has been subject to the public comment process in several prior instances with no substantive comments received. The FAA therefore finds that good cause exists for making these special conditions effective upon publication in the Federal Register. Comments Invited We invite interested people to take part in this rulemaking by sending written comments, data, or views. The most helpful comments reference a specific portion of the special conditions, explain the reason for any recommended change, and include supporting data. We will consider all comments we receive by the closing date for comments. We may change these special conditions based on the comments we receive. Background On September 8, 2015, Avmax Aviation Services Inc. applied for a supplemental type certificate (STC) for the installation of rechargeable lithium batteries to replace the existing nickel-cadmium and lead-acid rechargeable batteries in Bombardier Model DHC-8-100/- 200/-300 series airplanes. The Model DHC-8-100/-200/-300 series airplanes are transport- category, twin-engine turboprops with a maximum capacity of 37 (100 and 200 series) or 50 (300 series) passengers and a maximum takeoff weight of 36,300 lbs (100 and 200 series) or 43,000 lbs (300 series). Type Certification Basis Under the provisions of 14 CFR 21.101, Avmax must show that the Bombardier Model DHC-8-100/-200/-300 series airplanes, as changed, continue to meet the applicable provisions of the regulations incorporated by reference in Type Certificate No. A13NM, or the applicable regulations in effect on the date of application for the change. The regulations incorporated by reference in the type certificate are commonly referred to as the ``original type certification basis.'' In addition, if the regulations incorporated by reference do not provide adequate standards regarding the change, the applicant must comply with certain regulations in effect on the date of application for the change. If the Administrator finds that the applicable airworthiness regulations (i.e., 14 CFR part 25) do not contain adequate or appropriate safety standards [[Page 48320]] for the Model DHC-8-100/-200/-300 series airplanes because of a novel or unusual design feature, special conditions are prescribed under the provisions of 14 CFR 21.16. Special conditions are initially applicable to the model for which they are issued. Should the applicant apply for an STC to modify any other model included on the same type certificate to incorporate the same novel or unusual design feature, the special conditions would also apply to the other model. In addition to the applicable airworthiness regulations and special conditions, the Model DHC-8-100/-200/-300 series airplanes must comply with the fuel-vent and exhaust-emission requirements of 14 CFR part 34, and the noise-certification requirements of 14 CFR part 36. The FAA issues special conditions, as defined in 14 CFR 11.19, in accordance with Sec. 11.38, and they become part of the type certification basis under Sec. 21.101. Novel or Unusual Design Features The Bombardier Model DHC-8-100/-200/-300 series airplanes, as modified by Avmax, will incorporate the following novel or unusual design feature: Installed rechargeable lithium batteries and battery systems. Rechargeable lithium batteries are a novel or unusual design feature in transport-category airplanes. This type of battery has certain failure, operational, and maintenance characteristics that differ significantly from those of the nickel-cadmium and lead-acid rechargeable batteries currently approved for installation on transport-category airplanes. Discussion The current regulations governing installation of batteries in large transport-category airplanes were derived from Civil Air Regulations (CAR) part 4b.625(d) as part of the re-codification of CAR 4b that established 14 CFR part 25 in February 1965. The recodified battery requirements, Sec. 25.1353(c)(1) through (c)(4), basically reworded the CAR requirements. Increased use of nickel-cadmium batteries in small airplanes resulted in increased incidents of battery fires and failures that led to additional rulemaking affecting large transport-category airplanes as well as small airplanes. On September 1, 1977, and March 1, 1978, with Amendments 25-41 and 25-42, respectively, the FAA added paragraphs (c)(5) and (c)(6) to Sec. 25.1353, governing nickel-cadmium battery installations on large transport-category airplanes. On December 10, 2007, Amendment 25-123 moved the contents of paragraph (b) in Sec. 25.1353 to the new subpart H, resulting in the relocation of the regulations governing the installation of batteries in Sec. 25.1353 from paragraph (c) to paragraph (b). The proposed use of rechargeable lithium batteries for equipment and systems on airplanes prompted the FAA to review the adequacy of these existing battery regulations. Our review indicates that the existing regulations do not adequately address several failure, operational, and maintenance characteristics of lithium batteries, which could affect the safety and reliability of the lithium battery installations. At present, the airplane industry has limited experience with the use of lithium batteries in applications involving commercial aviation. However, other users of this technology, ranging from wireless- telephone manufacturers to the electric-vehicle industry, have noted safety problems with rechargeable lithium batteries. These problems include overcharging, over-discharging, and flammability of cell components. 1. Overcharging In general, lithium batteries are significantly more susceptible to internal failures that can result in self-sustaining increases in temperature and pressure (i.e., thermal runaway) than their nickel- cadmium or lead-acid counterparts. This condition is especially true for overcharging, which causes heating and destabilization of the components of the cell, leading to the formation (by plating) of highly unstable metallic lithium. The metallic lithium can ignite, resulting in a self-sustaining fire or explosion. In addition, the severity of thermal runaway, due to overcharging, increases with increasing battery capacity due to the higher amount of electrolyte in large batteries. 2. Over-Discharging Discharge of some types of lithium battery cells beyond a certain voltage (typically 2.4 volts), can cause corrosion of the electrodes of the cell, resulting in loss of battery capacity that cannot be reversed by recharging. This loss of capacity may not be detected by the simple voltage measurements commonly available to flightcrews as a means of checking battery status--a problem shared with nickel-cadmium batteries. 3. Flammability of Cell Components Unlike nickel-cadmium and lead-acid batteries, some types of lithium batteries use liquid electrolytes that are flammable. The electrolyte can serve as a source of fuel for an external fire if there is a breach of the battery container. These problems, which users of lithium batteries experience, raise concerns about the use of these batteries in commercial aviation. The intent of these special conditions is to establish appropriate airworthiness standards for lithium battery installations in the Bombardier Model DHC-8-100/-200/-300 series airplanes and to ensure, as required in Sec. Sec. 25.601 and 25.1309, that these battery installations are not hazardous or unreliable. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards. Applicability As discussed above, these special conditions are applicable to Bombardier Model DHC-8-100/-200/-300 series airplanes as modified by Avmax. Should Avmax apply at a later date for a supplemental type certificate to modify any other model included on Type Certificate No. A13NM incorporating the same novel or unusual design feature, the special conditions would apply to that model as well. Conclusion This action affects only certain novel or unusual design features on two model series of airplanes. It is not a rule of general applicability. The substance of these special conditions has been subjected to the notice and comment period in several prior instances and has been derived without substantive change from those previously issued. It is unlikely that prior public comment would result in a significant change from the substance contained herein. Therefore, because a delay would significantly affect the certification of the airplane, which is imminent, the FAA has determined that prior public notice and comment are unnecessary and impracticable, and good cause exists for adopting these special conditions upon publication in the Federal Register. The FAA is requesting comments to allow interested persons to submit views that may not have been submitted in response to the prior opportunities for comment described above. List of Subjects in 14 CFR Part 25 Aircraft, Aviation safety, Reporting and recordkeeping requirements. The authority citation for these special conditions is as follows: [[Page 48321]] Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704. The Special Conditions 0 Accordingly, pursuant to the authority delegated to me by the Administrator, the following special conditions are issued as part of the type certification basis for Bombardier Model DHC-8-100/-200/-300 series airplanes modified by Avmax Aviation Services Inc. In lieu of the requirements of 14 CFR 25.1353(c)(1) through (c)(4) at Amendment 25-51, all rechargeable lithium batteries and battery systems on Model DHC-8-100/-200/-300 airplanes, as modified by Avmax Aviation Services Inc., must be designed and installed as follows: 1. Safe cell temperatures and pressures must be maintained during any foreseeable charging or discharging condition and during any failure of the charging or battery monitoring system not shown to be extremely remote. The rechargeable lithium battery installation must preclude explosion in the event of those failures. 2. Design of the rechargeable lithium batteries must preclude the occurrence of self-sustaining, uncontrolled increases in temperature or pressure. 3. No explosive or toxic gases emitted by any rechargeable lithium battery in normal operation, or as the result of any failure of the battery charging system, monitoring system, or battery installation which is not shown to be extremely remote, may accumulate in hazardous quantities within the airplane. 4. Installations of rechargeable lithium batteries must meet the requirements of Sec. 25.863(a) through (d). 5. No corrosive fluids or gases that may escape from any rechargeable lithium battery may damage surrounding structure or any adjacent systems, equipment, or electrical wiring of the airplane in such a way as to cause a major or more-severe failure condition, in accordance with Sec. 25.1309(b) and applicable regulatory guidance. 6. Each rechargeable lithium battery installation must have provisions to prevent any hazardous effect on structure or essential systems caused by the maximum amount of heat the battery can generate during a short circuit of the battery or of its individual cells. 7. Lithium battery installations must have a system to control the charging rate of the battery automatically, designed to prevent battery overheating or overcharging, and, a. A battery-temperature sensing and over-temperature warning system with a means for automatically disconnecting the battery from its charging source in the event of an over-temperature condition, or, b. A battery-failure sensing and warning system with a means for automatically disconnecting the battery from its charging source in the event of battery failure. 8. Any rechargeable lithium battery installation, the function of which is required for safe operation of the airplane, must incorporate a monitoring and warning feature that will provide an indication to the appropriate flight crewmembers whenever the state-of-charge of the batteries has fallen below levels considered acceptable for dispatch of the airplane. 9. The instructions for continued airworthiness required by Sec. 25.1529 must contain maintenance requirements to assure that the battery is sufficiently charged at appropriate intervals specified by the battery manufacturer and the equipment manufacturer that contain the rechargeable lithium battery or rechargeable lithium battery system. This is required to ensure that rechargeable lithium batteries and rechargeable lithium battery systems will not degrade below specified ampere-hour levels sufficient to power the airplane systems for intended applications. The instructions for continued airworthiness must also contain procedures for the maintenance of batteries in spares storage to prevent the replacement of batteries with batteries that have experienced degraded charge retention ability or other damage due to prolonged storage at a low state of charge. Replacement batteries must be of the same manufacturer and part number as approved by the FAA. Precautions should be included, in the instructions for continued airworthiness maintenance instructions, to prevent mishandling of the rechargeable lithium battery and rechargeable lithium battery systems, which could result in short-circuit, or other unintentional impact damage caused by dropping batteries or other destructive means that could result in personal injury or property damage. Note 1: The term ``sufficiently charged'' means that the battery will retain enough of a charge, expressed in ampere-hours, to ensure that the battery cells will not be damaged. A battery cell may be damaged by lowering the charge below a point where the battery experiences a reduction in the ability to charge and retain a full charge. This reduction would be greater than the reduction that may result from normal operational degradation. Note 2: These special conditions are not intended to replace Sec. 25.1353(c) in the certification basis of Bombardier Model DHC- 8-100/-200/-300 series airplanes. These special conditions apply only to rechargeable lithium batteries and lithium battery systems and their installations on Bombardier Model DHC-8-100/-200/-300 series airplanes, as modified by Avmax. The requirements of Sec. 25.1353(c) remain in effect for batteries and battery installations on Bombardier Model DHC-8-100/-200/-300 series airplanes that do not use lithium batteries. Issued in Renton, Washington, on July 15, 2016. Michael Kaszycki, Assistant Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016-17428 Filed 7-22-16; 8:45 am] BILLING CODE 4910-13-P
![48319
Rules and Regulations Federal Register
Vol. 81, No. 142
Monday, July 25, 2016
This section of the FEDERAL REGISTER • Mail: Send comments to Docket FAA therefore finds that good cause
contains regulatory documents having general Operations, M–30, U.S. Department of exists for making these special
applicability and legal effect, most of which Transportation (DOT), 1200 New Jersey conditions effective upon publication in
are keyed to and codified in the Code of Avenue SE., Room W12–140, West the Federal Register.
Federal Regulations, which is published under Building Ground Floor, Washington,
50 titles pursuant to 44 U.S.C. 1510. Comments Invited
DC, 20590–0001.
The Code of Federal Regulations is sold by • Hand Delivery or Courier: Take We invite interested people to take
the Superintendent of Documents. Prices of comments to Docket Operations in part in this rulemaking by sending
new books are listed in the first FEDERAL Room W12–140 of the West Building written comments, data, or views. The
REGISTER issue of each week. Ground Floor at 1200 New Jersey most helpful comments reference a
Avenue SE., Washington, DC, between 9 specific portion of the special
a.m. and 5 p.m., Monday through conditions, explain the reason for any
DEPARTMENT OF TRANSPORTATION Friday, except Federal holidays. recommended change, and include
• Fax: Fax comments to Docket supporting data.
Federal Aviation Administration Operations at 202–493–2251. We will consider all comments we
Privacy: The FAA will post all receive by the closing date for
14 CFR Part 25 comments it receives, without change, comments. We may change these special
[Docket No. FAA–2015–1087; Special to http://www.regulations.gov/, conditions based on the comments we
Conditions No. 25–622–SC] including any personal information the receive.
commenter provides. Using the search Background
Special Conditions: Avmax Aviation function of the docket Web site, anyone
Services Inc., Bombardier Model DHC– can find and read the electronic form of On September 8, 2015, Avmax
8–100/–200/–300 Series Airplanes; all comments received into any FAA Aviation Services Inc. applied for a
Installed Rechargeable Lithium docket, including the name of the supplemental type certificate (STC) for
Batteries and Battery Systems individual sending the comment (or the installation of rechargeable lithium
signing the comment for an association, batteries to replace the existing nickel-
AGENCY: Federal Aviation cadmium and lead-acid rechargeable
Administration (FAA), DOT. business, labor union, etc.). DOT’s
complete Privacy Act Statement can batteries in Bombardier Model DHC–8–
ACTION: Final special conditions; 100/–200/–300 series airplanes.
be found in the Federal Register
request for comments. The Model DHC–8–100/–200/–300
published on April 11, 2000 (65 FR
19477–19478), as well as at http:// series airplanes are transport-category,
SUMMARY: These special conditions are
DocketsInfo.dot.gov/. twin-engine turboprops with a
issued for the Bombardier Model DHC–
Docket: Background documents or maximum capacity of 37 (100 and 200
8–100/–200/–300 series airplanes. These
comments received may be read at series) or 50 (300 series) passengers and
airplanes, as modified by Avmax
http://www.regulations.gov/ at any time. a maximum takeoff weight of 36,300 lbs
Aviation Services Inc. (Avmax), will
Follow the online instructions for (100 and 200 series) or 43,000 lbs (300
have a novel or unusual design feature
accessing the docket or go to the Docket series).
when compared to the state of
technology envisioned in the Operations in Room W12–140 of the Type Certification Basis
airworthiness standards for transport- West Building Ground Floor at 1200 Under the provisions of 14 CFR
category airplanes. This design feature New Jersey Avenue SE., Washington, 21.101, Avmax must show that the
is rechargeable lithium batteries to DC, between 9 a.m. and 5 p.m., Monday Bombardier Model DHC–8–100/–200/–
replace the existing nickel-cadmium through Friday, except Federal holidays. 300 series airplanes, as changed,
and lead-acid rechargeable batteries. FOR FURTHER INFORMATION CONTACT: continue to meet the applicable
The applicable airworthiness Nazih Khaouly, FAA, Airplane and provisions of the regulations
regulations do not contain adequate or Flight Crew Interface Branch, ANM– incorporated by reference in Type
appropriate safety standards for these 111, Transport Airplane Directorate, Certificate No. A13NM, or the
design features. These special Aircraft Certification Service, 1601 Lind applicable regulations in effect on the
conditions contain the additional safety Avenue SW., Renton, Washington date of application for the change. The
standards that the Administrator 98057–3356; telephone 425–227–2432; regulations incorporated by reference in
considers necessary to establish a level facsimile 425–227–1149. the type certificate are commonly
of safety equivalent to that established SUPPLEMENTARY INFORMATION: The FAA referred to as the ‘‘original type
by the existing airworthiness standards. has determined that notice of, and certification basis.’’
DATES: This action is effective on opportunity for prior public comment In addition, if the regulations
Avmax July 25, 2016. We must receive on, these special conditions is incorporated by reference do not
asabaliauskas on DSK3SPTVN1PROD with RULES
your comments by September 8, 2016. impracticable because these procedures provide adequate standards regarding
ADDRESSES: Send comments identified would significantly delay issuance of the change, the applicant must comply
by docket number FAA–2015–1087 the design approval and thus delivery of with certain regulations in effect on the
using any of the following methods: the affected airplanes. In addition, the date of application for the change.
• Federal eRegulations Portal: Go to substance of these special conditions If the Administrator finds that the
http://www.regulations.gov/ and follow has been subject to the public comment applicable airworthiness regulations
the online instructions for sending your process in several prior instances with (i.e., 14 CFR part 25) do not contain
comments electronically. no substantive comments received. The adequate or appropriate safety standards
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![Federal Register / Vol. 81, No. 142 / Monday, July 25, 2016 / Rules and Regulations 48321
Authority: 49 U.S.C. 106(g), 40113, 44701, a. A battery-temperature sensing and reduction that may result from normal
44702, 44704. over-temperature warning system with a operational degradation.
The Special Conditions means for automatically disconnecting
Note 2: These special conditions are not
the battery from its charging source in intended to replace § 25.1353(c) in the
■ Accordingly, pursuant to the authority the event of an over-temperature certification basis of Bombardier Model
delegated to me by the Administrator, condition, or, DHC–8–100/–200/–300 series airplanes.
the following special conditions are b. A battery-failure sensing and These special conditions apply only to
issued as part of the type certification warning system with a means for rechargeable lithium batteries and lithium
basis for Bombardier Model DHC–8– automatically disconnecting the battery battery systems and their installations on
100/–200/–300 series airplanes Bombardier Model DHC–8–100/–200/–300
from its charging source in the event of
modified by Avmax Aviation Services series airplanes, as modified by Avmax. The
battery failure. requirements of § 25.1353(c) remain in effect
Inc.
8. Any rechargeable lithium battery for batteries and battery installations on
In lieu of the requirements of 14 CFR
installation, the function of which is Bombardier Model DHC–8–100/–200/–300
25.1353(c)(1) through (c)(4) at series airplanes that do not use lithium
required for safe operation of the
Amendment 25–51, all rechargeable batteries.
airplane, must incorporate a monitoring
lithium batteries and battery systems on
and warning feature that will provide an Issued in Renton, Washington, on July 15,
Model DHC–8–100/–200/–300
indication to the appropriate flight 2016.
airplanes, as modified by Avmax
crewmembers whenever the state-of- Michael Kaszycki,
Aviation Services Inc., must be designed
charge of the batteries has fallen below
and installed as follows: Assistant Manager, Transport Airplane
levels considered acceptable for Directorate, Aircraft Certification Service.
1. Safe cell temperatures and dispatch of the airplane.
pressures must be maintained during [FR Doc. 2016–17428 Filed 7–22–16; 8:45 am]
any foreseeable charging or discharging 9. The instructions for continued BILLING CODE 4910–13–P
condition and during any failure of the airworthiness required by § 25.1529
charging or battery monitoring system must contain maintenance requirements
not shown to be extremely remote. The to assure that the battery is sufficiently DEPARTMENT OF TRANSPORTATION
rechargeable lithium battery installation charged at appropriate intervals
must preclude explosion in the event of specified by the battery manufacturer Federal Aviation Administration
those failures. and the equipment manufacturer that
2. Design of the rechargeable lithium contain the rechargeable lithium battery 14 CFR Part 39
batteries must preclude the occurrence or rechargeable lithium battery system.
This is required to ensure that [Docket No. FAA–2012–1289; Directorate
of self-sustaining, uncontrolled Identifier 2012–NE–43–AD; Amendment 39–
increases in temperature or pressure. rechargeable lithium batteries and 18591; AD 2016–14–10]
3. No explosive or toxic gases emitted rechargeable lithium battery systems
by any rechargeable lithium battery in will not degrade below specified RIN 2120–AA64
normal operation, or as the result of any ampere-hour levels sufficient to power
the airplane systems for intended Airworthiness Directives; CFM
failure of the battery charging system, International, S.A. Turbofan Engines
monitoring system, or battery applications. The instructions for
continued airworthiness must also Modified by Supplemental Type
installation which is not shown to be Certificate SE00034EN
extremely remote, may accumulate in contain procedures for the maintenance
hazardous quantities within the of batteries in spares storage to prevent AGENCY: Federal Aviation
airplane. the replacement of batteries with Administration (FAA), DOT.
4. Installations of rechargeable batteries that have experienced
ACTION: Final rule; request for
lithium batteries must meet the degraded charge retention ability or
other damage due to prolonged storage comments.
requirements of § 25.863(a) through (d).
5. No corrosive fluids or gases that at a low state of charge. Replacement SUMMARY: We are superseding
may escape from any rechargeable batteries must be of the same airworthiness directive (AD) 2013–02–
lithium battery may damage manufacturer and part number as 02 for certain CFM International, S.A.
surrounding structure or any adjacent approved by the FAA. Precautions CFM56–3, CFM56–3B, and CFM56–3C
systems, equipment, or electrical wiring should be included, in the instructions turbofan engines. AD 2013–02–02
of the airplane in such a way as to cause for continued airworthiness required removal from service of certain
a major or more-severe failure maintenance instructions, to prevent high-pressure turbine (HPT) disks
condition, in accordance with mishandling of the rechargeable lithium manufactured by Global Material
§ 25.1309(b) and applicable regulatory battery and rechargeable lithium battery Solutions of Pratt & Whitney, at reduced
guidance. systems, which could result in short- maximum life limits. This AD corrects
circuit, or other unintentional impact the serial numbers (S/Ns) listed in AD
6. Each rechargeable lithium battery
damage caused by dropping batteries or 2013–02–02. This AD was prompted by
installation must have provisions to
other destructive means that could reports that certain HPT disk S/Ns in
prevent any hazardous effect on
result in personal injury or property AD 2013–02–02 and in certain Pratt &
structure or essential systems caused by
damage. Whitney service information are
the maximum amount of heat the
asabaliauskas on DSK3SPTVN1PROD with RULES
battery can generate during a short Note 1: The term ‘‘sufficiently charged’’ incorrect. We are issuing this AD to
circuit of the battery or of its individual means that the battery will retain enough of prevent uncontained release of multiple
cells. a charge, expressed in ampere-hours, to turbine blades, damage to the engine,
ensure that the battery cells will not be and damage to the airplane.
7. Lithium battery installations must damaged. A battery cell may be damaged by
have a system to control the charging lowering the charge below a point where the DATES: This AD is effective August 9,
rate of the battery automatically, battery experiences a reduction in the ability 2016.
designed to prevent battery overheating to charge and retain a full charge. This The Director of the Federal Register
or overcharging, and, reduction would be greater than the approved the incorporation by reference
VerDate Sep<11>2014 17:30 Jul 22, 2016 Jkt 238001 PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 E:\FR\FM\25JYR1.SGM 25JYR1](https://thefederalregister.org/doc/81_FR_48461/page/3.svg)
Document Created: 2016-07-23 02:00:24
Document Modified: 2016-07-23 02:00:24
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Rules and Regulations | |
| Action | Final special conditions; request for comments. | |
| Dates | This action is effective on Avmax July 25, 2016. We must receive your comments by September 8, 2016. | |
| Contact | Nazih Khaouly, FAA, Airplane and Flight Crew Interface Branch, ANM-111, Transport Airplane Directorate, Aircraft Certification Service, 1601 Lind Avenue SW., Renton, Washington 98057-3356; telephone 425-227-2432; facsimile 425-227-1149. | |
| FR Citation | 81 FR 48319 | |
| CFR Associated | Aircraft; Aviation Safety and Reporting and Recordkeeping Requirements |
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