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GA small aircraft lost a section of tailpipe downstream of the muffler before takeoff. Problem was not detected until aircraft returned because of an alternator failure during climb.
| Attributes | |
| ACN | 161608 |
| Time | |
| Date | 199010 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ok33 |
| State Reference | OK |
| 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, Fixed Gear |
| Flight Phase | ground : preflight ground other : taxi |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 12 flight time total : 260 flight time type : 40 |
| ASRS Report | 161608 |
| Events | |
| Anomaly | aircraft equipment problem : critical aircraft equipment problem : less severe |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : unable none taken : detected after the fact |
| Consequence | other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Exhaust downpipe separated from muffler during engine start. This condition was not noticed by pilot or passenger. Normal takeoff was initiated. At approximately 300' AGL a circuit breaker (alternate field) opened. The altitude gauge dropped to 0. I decided to land again. During the turn both pilot and passenger detected odor of 'burned plastic.' following taxi back to tie-down area, we found exhaust pipe lying on ground. Inspection revealed approximately 1 sf of cowl fiberglass was melted away.
Original NASA ASRS Text
Title: GA SMA LOST A SECTION OF TAILPIPE DOWNSTREAM OF THE MUFFLER BEFORE TKOF. PROBLEM WAS NOT DETECTED UNTIL ACFT RETURNED BECAUSE OF AN ALTERNATOR FAILURE DURING CLIMB.
Narrative: EXHAUST DOWNPIPE SEPARATED FROM MUFFLER DURING ENG START. THIS CONDITION WAS NOT NOTICED BY PLT OR PAX. NORMAL TKOF WAS INITIATED. AT APPROX 300' AGL A CB (ALTERNATE FIELD) OPENED. THE ALT GAUGE DROPPED TO 0. I DECIDED TO LAND AGAIN. DURING THE TURN BOTH PLT AND PAX DETECTED ODOR OF 'BURNED PLASTIC.' FOLLOWING TAXI BACK TO TIE-DOWN AREA, WE FOUND EXHAUST PIPE LYING ON GND. INSPECTION REVEALED APPROX 1 SF OF COWL FIBERGLASS WAS MELTED AWAY.
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.