AD 99-26-19 R1

AD Final Rules - 99-26-19 R1.pdf
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AD Number:
99-26-19 R1
Document Type:
AD Final Rules
Docket Number:
FAA-2013-0724
Subject Heading:
Airworthiness Directives; Piper Aircraft, Inc. Airplanes
Subject:
Wings
Status:
Current
Citation:
Federal Register Volume 78, Number 241 (Monday, December 16, 2013)
Citation Publish Date:
12/16/2013
Effective Date:
01/21/2014
Make:
Piper Aircraft Inc.
Model:
J-2
Product Type:
Aircraft
Product Subtype:
Small Airplane
Affected AD:
Superseded AD:
99-26-19
Affected By:
Superseded By:
Service/Office:
AIR-700: Compliance & Airworthiness Division
Office of Primary Responsibility:
AIR-720: Operational Safety Branch
CFR Part Reference:
Part 39
Comments:
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[Federal Register Volume 78, Number 241 (Monday, December 16, 2013)]


[Rules and Regulations]


[Pages 76040-76045]


From the Federal Register Online via the Government Printing Office [www.gpo.gov]


[FR Doc No: 2013-29679]


––––––––––––––––––––––––––––––––––


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39


[Docket No. FAA-2013-0724; Directorate Identifier 99-CE-013-AD; Amendment 39-17691; AD


99-26-19 R1]


RIN 2120-AA64


Airworthiness Directives; Piper Aircraft, Inc. Airplanes


AGENCY:
 
Federal Aviation Administration (FAA), DOT.


ACTION:
 
Final rule.


––––––––––––––––––––––––––––––––––


SUMMARY:
 
We are revising Airworthiness Directive (AD) 99-26-19 that applies to certain The


New Piper Aircraft, Inc. Model J-2 airplanes equipped with wing lift struts. AD 99-26-19 required


repetitively inspecting the wing lift struts for dents and corrosion; repetitively inspecting the wing lift


strut forks for cracks; replacing any dented or corroded wing lift strut; replacing any cracked wing lift


strut fork; and repetitively replacing the wing lift strut forks at specified times for certain airplanes.


AD 99-26-19 also required incorporating a ''NO STEP'' placard on the wing lift strut. Since we issued


AD 99-26-19, we were informed that paragraph (c) had been misinterpreted and caused confusion.


This AD clarifies the intent of the language in paragraph (c) of AD 99-26-19 and retains all other


requirements of AD 99-26-19. We are issuing this AD to correct the unsafe condition on these


products.


DATES:
 
This AD is effective January 21, 2014.


The Director of the Federal Register approved the incorporation by reference of a certain


publication listed in this AD as of February 14, 2000 (64 FR 72524, December 28, 1999).


ADDRESSES:
 
For service information identified in this AD, contact Piper Aircraft, Inc., Customer


Services, 2926 Piper Drive, Vero Beach, Florida 32960; telephone: (772) 567-4361; Internet:


www.piper.com. You may review copies of the referenced service information at the FAA, Small


Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For information on the availability of


this material at the FAA, call (816) 329-4148.


Examining the AD Docket


You may examine the AD docket on the Internet at http://www.regulations.gov by searching for


and locating it in Docket No. FAA-2013-0724; or in person at the Docket Management Facility
2


between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket


contains this AD, the regulatory evaluation, any comments received, and other information. The


address for the Docket Office (phone: 800-647-5527) is Document Management Facility, U.S.


Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-


140, 1200 New Jersey Avenue SE., Washington, DC 20590.


FOR FURTHER INFORMATION CONTACT:
 
Gregory ''Keith'' Noles, Aerospace Engineer,


FAA, Atlanta Aircraft Certification Office, 1701 Columbia Avenue, College Park, Georgia 30337;


phone: (404) 474-5551; fax: (404) 474-5606; email: gregory.noles@faa.gov.


SUPPLEMENTARY INFORMATION:


Discussion


We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to revise AD 99-


26-19, Amendment 39-11479 (64 FR 72524, December 28, 1999), (''AD 99-26-19''). AD 99-26-19


applied to the specified products. The NPRM published in the Federal Register on August 13, 2013


(78 FR 49221). The NPRM proposed to retain all requirements of AD 99-26-19 and clarify our intent


of required actions if the seal on a sealed wing lift strut is ever improperly broken.


Comments


We gave the public the opportunity to participate in developing this AD. We received no


comments on the NPRM or on the determination of the cost to the public.


Conclusion


We reviewed the relevant data and determined that air safety and the public interest require


adopting this AD as proposed except for minor editorial changes. We have determined that these


minor changes:


•
 
Are consistent with the intent that was proposed in the NPRM (78 FR 49221, August 13,


2013) for correcting the unsafe condition; and


•
 
Do not add any additional burden upon the public than was already proposed in the NPRM


(78 FR 49221, August 13, 2013).


Costs of Compliance


We estimate that this AD affects 91 airplanes of U.S. registry.


We estimate the following costs to comply with this AD. However, the only difference in the


costs presented below and the costs associated with AD 99-26-19 is the change in the labor rate from


$65 per hour to $85 per hour:


Estimated Costs


Action
 
Labor cost
 
Parts cost
 
Cost per


product


Cost on U.S.


operators


Inspection of the wing lift


struts and wing lift strut


forks


8 work-hours × $85 per


hour = $680 per


inspection cycle


Not


applicable


$680 per


inspection


cycle.


$61,880 per


inspection


cycle.


Installation placard
 
1 work-hour × $85 = $85
 
$30
 
$115
 
$10,465.