37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 477033 |
Time | |
Date | 200006 |
Day | Mon |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | airport : zzz.airport |
State Reference | US |
Altitude | agl single value : 0 |
Environment | |
Light | Daylight |
Aircraft 1 | |
Operator | Other |
Make Model Name | Military Trainer |
Operating Under FAR Part | Part 91 |
Flight Phase | ground : parked ground : maintenance |
Flight Plan | None |
Person 1 | |
Affiliation | other |
Function | maintenance : technician |
Qualification | technician : powerplant technician : airframe |
Experience | maintenance technician : 25 |
ASRS Report | 477033 |
Person 2 | |
Affiliation | other |
Function | flight crew : single pilot other personnel other |
Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : atp technician : airframe technician : powerplant technician : inspection authority |
Events | |
Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure |
Independent Detector | other other : person 2 |
Resolutory Action | flight crew : landed as precaution |
Consequence | other |
Factors | |
Maintenance | performance deficiency : fault isolation performance deficiency : inspection performance deficiency : repair |
Supplementary | |
Problem Areas | Flight Crew Human Performance Aircraft |
Primary Problem | Flight Crew Human Performance |
Narrative:
Broken cable to front cockpit. Cannot inspect broken cabin inside shield unless cable is destroyed. Oil leak engine out horn to oil cooler. Gasket cracked and caused oil leak. Gasket is supplied on engine from overhaul factory. Horn was installed per installation manual. Elevator fabric cover came loose by trim tab. Fabric was little loose and owner put fingernail under and tore loose fabric. Callback conversation with reporter revealed the following information: the reporter stated restoring world war ii fighter aircraft and assembling and certifying foreign aircraft are his specialty. The reporter said an air transport captain purchased a nanchang cj-6A in china and contracted my shop to assemble and certify the aircraft. The reporter said the owner of the aircraft was advised the brake cables should be replaced precautionary due to being encased in a sheath and cable condition could not be determined but the owner refused. The reporter stated the owner then purchased a russian built 9 cylinder radial engine which was installed. The reporter stated the first flight after 20 hours of certification time the engine displayed high oil consumption using 6 quarts in a short flight and no investigation was made to determine cause. The reporter stated a brake failure occurred caused by a broken cable and later a report of elevator fabric coming loose caused by the owner lifting the fabric with a finger. The reporter stated responsibility for the engine oil problem was with the owner as the engine was purchased and installed as a unit. The reporter said the other problems were all owner caused and could have been avoided. The reporter stated not only was the owner air transport rated but had an airframe and pwrplant license with inspection authority/authorized.
Original NASA ASRS Text
Title: A TECHNICIAN WHO CERTIFIED A NANCHANG CJ-6A FOR A PVT OWNER IS ALLEGED TO HAVE OVERLOOKED OBVIOUS ACFT MAINT DISCREPANCIES.
Narrative: BROKEN CABLE TO FRONT COCKPIT. CANNOT INSPECT BROKEN CABIN INSIDE SHIELD UNLESS CABLE IS DESTROYED. OIL LEAK ENG OUT HORN TO OIL COOLER. GASKET CRACKED AND CAUSED OIL LEAK. GASKET IS SUPPLIED ON ENG FROM OVERHAUL FACTORY. HORN WAS INSTALLED PER INSTALLATION MANUAL. ELEVATOR FABRIC COVER CAME LOOSE BY TRIM TAB. FABRIC WAS LITTLE LOOSE AND OWNER PUT FINGERNAIL UNDER AND TORE LOOSE FABRIC. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED RESTORING WORLD WAR II FIGHTER ACFT AND ASSEMBLING AND CERTIFYING FOREIGN ACFT ARE HIS SPECIALTY. THE RPTR SAID AN AIR TRANSPORT CAPT PURCHASED A NANCHANG CJ-6A IN CHINA AND CONTRACTED MY SHOP TO ASSEMBLE AND CERTIFY THE ACFT. THE RPTR SAID THE OWNER OF THE ACFT WAS ADVISED THE BRAKE CABLES SHOULD BE REPLACED PRECAUTIONARY DUE TO BEING ENCASED IN A SHEATH AND CABLE CONDITION COULD NOT BE DETERMINED BUT THE OWNER REFUSED. THE RPTR STATED THE OWNER THEN PURCHASED A RUSSIAN BUILT 9 CYLINDER RADIAL ENG WHICH WAS INSTALLED. THE RPTR STATED THE FIRST FLT AFTER 20 HRS OF CERTIFICATION TIME THE ENG DISPLAYED HIGH OIL CONSUMPTION USING 6 QUARTS IN A SHORT FLT AND NO INVESTIGATION WAS MADE TO DETERMINE CAUSE. THE RPTR STATED A BRAKE FAILURE OCCURRED CAUSED BY A BROKEN CABLE AND LATER A RPT OF ELEVATOR FABRIC COMING LOOSE CAUSED BY THE OWNER LIFTING THE FABRIC WITH A FINGER. THE RPTR STATED RESPONSIBILITY FOR THE ENG OIL PROB WAS WITH THE OWNER AS THE ENG WAS PURCHASED AND INSTALLED AS A UNIT. THE RPTR SAID THE OTHER PROBS WERE ALL OWNER CAUSED AND COULD HAVE BEEN AVOIDED. THE RPTR STATED NOT ONLY WAS THE OWNER AIR TRANSPORT RATED BUT HAD AN AIRFRAME AND PWRPLANT LICENSE WITH INSPECTION AUTH.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.