 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A cessna 441 pilot reported that, after departing ege, the airspeed indicator began to fail, then the autoplt and yaw damper failed. The pilot continued flying and later experienced a TCASII RA when an air carrier aircraft appeared at the same cruise altitude.
| Attributes | |
| ACN | 467151 |
| Time | |
| Date | 200003 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zma.artcc |
| State Reference | FL |
| Altitude | msl single value : 27000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma.artcc artcc : zau.artcc |
| Operator | general aviation : personal |
| Make Model Name | Cessna Twin Turboprop Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zma.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 27 flight time total : 2083 flight time type : 275 |
| ASRS Report | 467151 |
| Person 2 | |
| Affiliation | other |
| Function | observation : passenger |
| Qualification | pilot : private pilot : multi engine |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : overshoot conflict : airborne critical non adherence : far non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | controller : issued advisory none taken : anomaly accepted |
| Consequence | other |
| Miss Distance | horizontal : 3000 vertical : 400 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Before departure from ege (XA30) I checked all the system and operation of pitot and stall heater, like usual. Everything checked ok. On takeoff airspeed was accurate. About 10 mins into the climb airspeed read 20 KTS slower on pilot side than on copilot -- so split it down the middle. Autoplt failed even though checked on the ground, as did yaw damper. Copilot and I flew the airplane manually 1 hour each then 1/2 hour turns towards the end of the flight. Flew at FL290 using pilot's altimeter and radar equipment. Told by controller about 2 1/2 hours into the flight to go to FL270 for traffic. Remained at FL270 to hevvn intersection (off the coast of florida). Informed of traffic at FL260 -- saw and reported traffic. At about XD30 informed of traffic at FL280 (by jax controller) that seemed to be at our altitude. Saw traffic a few mins later and reported to the controller that air carrier aircraft seemed to be at our altitude and at the wrong altitude. A moment later the air carrier captain reported us on TCASII. After this we told the controller and subsequent controller that our altitude may be off and we asked for greater separation. No further problems. Landed safely at bct at XF15. Upon landing, airspeed indicator and autoplt worked again. Equipment and lines to be thoroughly checked -- possibly should have reported that autoplt was not functioning to the controller for greater separation?
Original NASA ASRS Text
Title: A CESSNA 441 PLT RPTED THAT, AFTER DEPARTING EGE, THE AIRSPD INDICATOR BEGAN TO FAIL, THEN THE AUTOPLT AND YAW DAMPER FAILED. THE PLT CONTINUED FLYING AND LATER EXPERIENCED A TCASII RA WHEN AN ACR ACFT APPEARED AT THE SAME CRUISE ALT.
Narrative: BEFORE DEP FROM EGE (XA30) I CHKED ALL THE SYS AND OP OF PITOT AND STALL HEATER, LIKE USUAL. EVERYTHING CHKED OK. ON TKOF AIRSPD WAS ACCURATE. ABOUT 10 MINS INTO THE CLB AIRSPD READ 20 KTS SLOWER ON PLT SIDE THAN ON COPLT -- SO SPLIT IT DOWN THE MIDDLE. AUTOPLT FAILED EVEN THOUGH CHKED ON THE GND, AS DID YAW DAMPER. COPLT AND I FLEW THE AIRPLANE MANUALLY 1 HR EACH THEN 1/2 HR TURNS TOWARDS THE END OF THE FLT. FLEW AT FL290 USING PLT'S ALTIMETER AND RADAR EQUIP. TOLD BY CTLR ABOUT 2 1/2 HRS INTO THE FLT TO GO TO FL270 FOR TFC. REMAINED AT FL270 TO HEVVN INTXN (OFF THE COAST OF FLORIDA). INFORMED OF TFC AT FL260 -- SAW AND RPTED TFC. AT ABOUT XD30 INFORMED OF TFC AT FL280 (BY JAX CTLR) THAT SEEMED TO BE AT OUR ALT. SAW TFC A FEW MINS LATER AND RPTED TO THE CTLR THAT ACR ACFT SEEMED TO BE AT OUR ALT AND AT THE WRONG ALT. A MOMENT LATER THE ACR CAPT RPTED US ON TCASII. AFTER THIS WE TOLD THE CTLR AND SUBSEQUENT CTLR THAT OUR ALT MAY BE OFF AND WE ASKED FOR GREATER SEPARATION. NO FURTHER PROBS. LANDED SAFELY AT BCT AT XF15. UPON LNDG, AIRSPD INDICATOR AND AUTOPLT WORKED AGAIN. EQUIP AND LINES TO BE THOROUGHLY CHKED -- POSSIBLY SHOULD HAVE RPTED THAT AUTOPLT WAS NOT FUNCTIONING TO THE CTLR FOR GREATER SEPARATION?
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.