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Flap motor failure while on instrument approach in VMC distracts fatigued pilot. Momentary altitude deviation results.
| Attributes | |
| ACN | 775287 |
| Time | |
| Date | 200802 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mqy.airport |
| State Reference | TN |
| Altitude | msl single value : 2500 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bna.tracon tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Baron 58/58TC |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Person 2 | |
| Qualification | pilot : cfi pilot : multi engine pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 25 flight time total : 895 flight time type : 225 |
| ASRS Report | 775287 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude altitude deviation : overshoot |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem flight crew : returned to assigned altitude |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
Inbound for landing in the approach phase; assigned 2500 ft MSL; own navigation direct to airport in visual conditions. Broke out of IMC at approximately 2700 ft MSL. Selected flaps 15 degrees; flaps traveled past 15 degrees; stopped and continued to 30 degrees. This unexpected flap extension resulted in a momentary deviation from the assigned altitude of 2500 ft MSL to approximately 2200 ft MSL. Flaps were retracted. Upon reaching complete retraction; the flap motor breaker popped. Applied power and climbed back to assigned altitude; continued; and made a no-flaps landing without any problems. Airplane was towed to the maintenance hangar for repairs to be made. My response was slower than normal due to flight fatigue. I was on my return trip from 3 days of recurrent flight training; which included 10 hours of simulator work. Sun's position was making it difficult to identify the airport for a visual approach. Therefore; I was looking outside the airplane more than usual during a visual approach on an instrument clearance.
Original NASA ASRS Text
Title: FLAP MOTOR FAILURE WHILE ON INSTRUMENT APCH IN VMC DISTRACTS FATIGUED PLT. MOMENTARY ALT DEVIATION RESULTS.
Narrative: INBOUND FOR LNDG IN THE APCH PHASE; ASSIGNED 2500 FT MSL; OWN NAV DIRECT TO ARPT IN VISUAL CONDITIONS. BROKE OUT OF IMC AT APPROX 2700 FT MSL. SELECTED FLAPS 15 DEGS; FLAPS TRAVELED PAST 15 DEGS; STOPPED AND CONTINUED TO 30 DEGS. THIS UNEXPECTED FLAP EXTENSION RESULTED IN A MOMENTARY DEV FROM THE ASSIGNED ALT OF 2500 FT MSL TO APPROX 2200 FT MSL. FLAPS WERE RETRACTED. UPON REACHING COMPLETE RETRACTION; THE FLAP MOTOR BREAKER POPPED. APPLIED PWR AND CLBED BACK TO ASSIGNED ALT; CONTINUED; AND MADE A NO-FLAPS LNDG WITHOUT ANY PROBS. AIRPLANE WAS TOWED TO THE MAINT HANGAR FOR REPAIRS TO BE MADE. MY RESPONSE WAS SLOWER THAN NORMAL DUE TO FLT FATIGUE. I WAS ON MY RETURN TRIP FROM 3 DAYS OF RECURRENT FLT TRAINING; WHICH INCLUDED 10 HRS OF SIMULATOR WORK. SUN'S POS WAS MAKING IT DIFFICULT TO IDENT THE ARPT FOR A VISUAL APCH. THEREFORE; I WAS LOOKING OUTSIDE THE AIRPLANE MORE THAN USUAL DURING A VISUAL APCH ON AN INST CLRNC.
Data retrieved from NASA's ASRS site as of May 2009 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.