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Attributes | |
ACN | 202046 |
Time | |
Date | 199202 |
Day | Sat |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : zzz |
State Reference | US |
Altitude | agl bound lower : 0 agl bound upper : 0 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Operator | general aviation : personal |
Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
Flight Phase | climbout : takeoff ground : preflight landing other |
Flight Plan | None |
Person 1 | |
Affiliation | Other |
Function | flight crew : single pilot |
Qualification | pilot : cfi pilot : atp |
Experience | flight time last 90 days : 250 flight time total : 6900 flight time type : 8 |
ASRS Report | 202046 |
Person 2 | |
Affiliation | Other |
Function | other personnel other personnel other other personnel other |
Qualification | other other : other |
Events | |
Anomaly | aircraft equipment problem : critical non adherence other other anomaly other |
Independent Detector | other flight crewa |
Resolutory Action | flight crew : overcame equipment problem |
Consequence | Other |
Supplementary | |
Primary Problem | Aircraft |
Air Traffic Incident | other |
Narrative:
I have had 2 events involving my private flying of my small aircraft low winger that could have led to a serious accident. In both cases I was lucky or skillful and avoided an incident. Both involved problems after avionics maintenance. The first incident happened in 1987. I had a new transponder installed by facility mechanic. A few flts later making a crosswind landing, the elevator jammed just prior to the flare. Brut force overcame it and aircraft wasn't damaged. Transponder was not strapped in properly and binding only occurred at rear fully aft with right aileron in. The mechanic was glad to strap unit in properly but of course would make no entry in logbook. This yr my aircraft had been in for a transponder and pitot static certification, 5 months being were required for this job! I finally got my aircraft back from maintenance facility to find a new altimeter was installed without informing me. Due to the age of my altimeter I'm sure this was needed. After checking the logbook, and paying the $625 I decided on a quickie test flight. Surprise! The kollsman knob could not be turned, it would not budge! The knurled knob was jammed rock tight against the plastic instrument panel cover. A simple fix. Both these cases emphasize the need for a complete operations check after avionics maintenance. Look, turn, feel, operate and turn again, look at all areas involved in the installation as well as all system. This could save your aircraft and life.
Original NASA ASRS Text
Title: ACFT MAINT DISCREPANCIES AND ACFT EQUIP PROBLEMS.
Narrative: I HAVE HAD 2 EVENTS INVOLVING MY PRIVATE FLYING OF MY SMA LOW WINGER THAT COULD HAVE LED TO A SERIOUS ACCIDENT. IN BOTH CASES I WAS LUCKY OR SKILLFUL AND AVOIDED AN INCIDENT. BOTH INVOLVED PROBLEMS AFTER AVIONICS MAINT. THE FIRST INCIDENT HAPPENED IN 1987. I HAD A NEW TRANSPONDER INSTALLED BY FACILITY MECH. A FEW FLTS LATER MAKING A XWIND LNDG, THE ELEVATOR JAMMED JUST PRIOR TO THE FLARE. BRUT FORCE OVERCAME IT AND ACFT WASN'T DAMAGED. TRANSPONDER WAS NOT STRAPPED IN PROPERLY AND BINDING ONLY OCCURRED AT REAR FULLY AFT WITH R AILERON IN. THE MECH WAS GLAD TO STRAP UNIT IN PROPERLY BUT OF COURSE WOULD MAKE NO ENTRY IN LOGBOOK. THIS YR MY ACFT HAD BEEN IN FOR A TRANSPONDER AND PITOT STATIC CERTIFICATION, 5 MONTHS BEING WERE REQUIRED FOR THIS JOB! I FINALLY GOT MY ACFT BACK FROM MAINT FACILITY TO FIND A NEW ALTIMETER WAS INSTALLED WITHOUT INFORMING ME. DUE TO THE AGE OF MY ALTIMETER I'M SURE THIS WAS NEEDED. AFTER CHKING THE LOGBOOK, AND PAYING THE $625 I DECIDED ON A QUICKIE TEST FLT. SURPRISE! THE KOLLSMAN KNOB COULD NOT BE TURNED, IT WOULD NOT BUDGE! THE KNURLED KNOB WAS JAMMED ROCK TIGHT AGAINST THE PLASTIC INST PANEL COVER. A SIMPLE FIX. BOTH THESE CASES EMPHASIZE THE NEED FOR A COMPLETE OPS CHK AFTER AVIONICS MAINT. LOOK, TURN, FEEL, OPERATE AND TURN AGAIN, LOOK AT ALL AREAS INVOLVED IN THE INSTALLATION AS WELL AS ALL SYS. THIS COULD SAVE YOUR ACFT AND LIFE.
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.