 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737-200 captain reported that the captain's hand microphone became repeatedly stuck, blocked the frequency in ZJX airspace.
| Attributes | |
| ACN | 518240 |
| Time | |
| Date | 200107 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : tay.vortac |
| State Reference | FL |
| Altitude | msl single value : 27000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Flight Phase | cruise : level |
| Route In Use | arrival star : lzard 1 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 7000 flight time type : 1800 |
| ASRS Report | 518240 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : far non adherence : published procedure |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | faa : reviewed incident with flight crew other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On STAR lizard 1 into tpa, about 40 mi south taylor VOR, hand microphone became stuck. Did not notice until south of ocala VOR, tracking 185 degree radial. Hand microphone stuck approximately 10-15 mins. After realizing we should be starting down for tpa we discovered the stuck microphone. We contacted center and were asked to call them when we got on the ground. I contacted ZJX on the phone and explained. On the outbound flight, tpa to cmh, as we taxied out, we again got a stuck hand microphone, but no one had touched either hand microphone. We were both on headsets. We discovered the captain's hand microphone was sticking due to turbulence and bumps in txwys. We pulled both hand mikes out and wrote a maintenance write-up. Some distractions were flight attendants in cockpit on the inbound flight and malfunctioning hand mikes.
Original NASA ASRS Text
Title: A B737-200 CAPT RPTED THAT THE CAPT'S HAND MIKE BECAME REPEATEDLY STUCK, BLOCKED THE FREQ IN ZJX AIRSPACE.
Narrative: ON STAR LIZARD 1 INTO TPA, ABOUT 40 MI S TAYLOR VOR, HAND MIKE BECAME STUCK. DID NOT NOTICE UNTIL S OF OCALA VOR, TRACKING 185 DEG RADIAL. HAND MIKE STUCK APPROX 10-15 MINS. AFTER REALIZING WE SHOULD BE STARTING DOWN FOR TPA WE DISCOVERED THE STUCK MIKE. WE CONTACTED CTR AND WERE ASKED TO CALL THEM WHEN WE GOT ON THE GND. I CONTACTED ZJX ON THE PHONE AND EXPLAINED. ON THE OUTBOUND FLT, TPA TO CMH, AS WE TAXIED OUT, WE AGAIN GOT A STUCK HAND MIKE, BUT NO ONE HAD TOUCHED EITHER HAND MIKE. WE WERE BOTH ON HEADSETS. WE DISCOVERED THE CAPT'S HAND MIKE WAS STICKING DUE TO TURB AND BUMPS IN TXWYS. WE PULLED BOTH HAND MIKES OUT AND WROTE A MAINT WRITE-UP. SOME DISTRACTIONS WERE FLT ATTENDANTS IN COCKPIT ON THE INBOUND FLT AND MALFUNCTIONING HAND MIKES.
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.