SERVICE BULLETIN No. 868
Piper PA-11 Cub Special · Service Bulletins
Overview
This Service Bulletin No. 868 from Piper Aircraft Corporation addresses a critical safety issue concerning the Forward Fuel Header Tank in the Piper PA-11 Cub Special and PA-18 Super Cub models. Following accident reports indicating potential ruptures of the fuel tank, which could exacerbate post-crash fires, the bulletin mandates compliance with the installation of an improved fuel tank. The new tank features thicker walls and welded seams for enhanced strength. Compliance is deemed mandatory and should be performed as soon as possible. The bulletin also provides instructions for the installation of the new tank and emphasizes the importance of logging compliance in the aircraft's records.
- Affected models include Piper PA-11 Cub Special and PA-18 Super Cub.
- Compliance with this Service Bulletin is mandatory and should be completed as soon as possible.
- The affected serial numbers for PA-11 range from 11-1 to 11-1678; for PA-18, from 18-1 to 18-8109086.
- The installation of the improved Forward Fuel Header Tank is necessary to prevent potential ruptures during accidents.
- The new tank (Piper Part Number 60763-02) features thicker walls and welded seams for increased strength.
Document
Source
Originally published by www.univair.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Service Bulletins
- Year
- 1987
- Pages
- 2
- File size
- 94 KB
- Publisher
- www.univair.com
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In this document
Purpose
The purpose of this Service Bulletin is to address safety concerns regarding the Forward Fuel Header Tank in the affected aircraft models. Reports indicated that the tank could rupture in severe impacts, potentially increasing fire intensity in the cockpit during post-crash scenarios.
Compliance Time
Compliance with this Service Bulletin is mandatory and should be performed as soon as possible. Affected serial numbers for the PA-11 Cub Special range from 11-1 to 11-1678, and for the PA-18 Super Cub from 18-1 to 18-8109086.
Instructions
The bulletin outlines specific steps for compliance: drain fuel from the aircraft, remove the existing Forward Fuel Header Tank (Piper Part Number 10725-00), and install the improved tank (Piper Part Number 60763-02) using existing hardware. After installation, the aircraft should be refueled and checked for leaks.
Material Required
One Forward Fuel Header Tank (Piper Part Number 60763-02) is required per aircraft for compliance with this Service Bulletin.
Approval
The modification described in this Service Bulletin has been approved by the FAA, ensuring that the new tank meets safety standards.
Safety notes
- Failure to comply with this Service Bulletin may increase the risk of fire in the cockpit during a post-crash scenario.
Full document text
Piper Aircraft Corporation ·uo Beach, Florida, U.S.A. SERVICE BULLETIN No. 868 ********************************** : PIPER CONSIDERS : : COMPLIANCE MANDATORY : * * ********************************** Date Auaust 19. 1987 S <Service Bulletin No. 868 supersedes and voids Service Letter No. 955 dated November 11, 1982,) SUBJECT• HCI)Eb$ AFEECTERa PA-11 Cub Special PA-18 Super Cub CQHPLIANCE TIMEa Forward Fuel Header Tank Installation SERIAL M MfBS AffgcTEQ I 11-1 through 11-1678 18-1 through 18-8109086 The above listed Serial Nulllbers Affected Inc Jude ~ L-18 and L-21 Sarles Aircraft. As Soon As Possible PuRPOSE• Accident reports received fro. the field Indicate that, depending upon the severity of I~Pect, the forward fuel header tank, located behind the lnstru111811t !)anal, had ruptured. If a post-crash fire occurs, this condition could Increase the Intensity of a fire In the cockpit. This Service Bulletin announces the field availability of an Improved Forward Fuel Header Tank offered at special pricing, which provides greater resistance to ln.,eet rupture In the event of an accident. The I~Proved tank has thicker walls and welded sea.. for additional strength. AfPRQYAL• The .adlflcatlon to the affected aircraft described In this publication has been approved by the F .A.A. INSTRL£TIONSa NOTE: Aircraft which have co...,! led with Service Letter No. 955 are In con.,! lance with Service Bulletin No. 868. 1. Drain fuel from aircraft. 2. Remove the Forward Fuel Header Tank, Piper Part Number 10725-00, and Install the Improved Forward Fuel Header Tank, Piper Part Number 60763-02, using existing hardware. 3. Refuel aircraft and check for leaks. 4.· Make appropriate logbook entry of co...,llance with this Service Bulletin. <over) ATAt 2810 SERVICE BULLETIN NO. 868 PAGE 2 <F 2 MATERIAL REOOIBEQ• One (1) each, Forward Fuel Header Tank, Piper Part Number 60763-D2, per aircraft. AyAILAB!L!TI !f PARTS; Your Piper Field Service Facility. EFFECTIVITY PATE• This Service Bulletin Is effective upon receipt. Sllf4ARY • Please contact your Factory Author I zed PI per F lei d Service Facility to make arrangements for compliance with this Service Bulletin In accordance with the Compliance Time Indicated. NQTE• If you are no longer In possession of this aircraft, please forward this Information to the current owner-operator and notify the factory of address/ownership corrections. Changes should Include aircraft .ode!, serial number, current owner's name and address. Corrections/Changes should be directed toa Piper Aircraft Corporation Attna Product Support P.O. Box 1328 Yero Beech, FL 32961·1328