# Accident 19980324004149A: Cessna T207A, Monument Valley, UT, March 24, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 24, 1998, 15:00 local time
- Place: Monument Valley, UT
- Airport: Monument Valley Airport
- Damage: Substantial damage
- Phase of flight: Forced/Precautionary Landing
- Operating rules: Air taxi and commuter (Part 135)
- Operator: ASWA
- Location: 37.0807° N, 110.2491° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=37.0807&lon=-110.2491&mi=10
- Aircraft: N73780, a cancelled registration (https://openairdocs.org/deregistered/N73780-2017-02-22) (OpenAirDocs)
- Registry model: Cessna T207A (registry code 2073615, https://openairdocs.org/model/cessna-t207a) (OpenAirDocs)
- Registry engine: Continental TSIO-520-M (registry code 17266, https://openairdocs.org/engine/continental-tsio-520-m) (OpenAirDocs)
- Reported make and model: CESSNA T207A
- Reported engine: CONT TSIO520M
- Fatal injuries: 0
- Pilot flight hours: 1,343 total, 13 in this make and model, 58 in the last 90 days
- NTSB investigation: [NTSB FTW98FA157](https://openairdocs.org/ntsb/FTW98FA157) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980324004149A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

LOST POWER ON CLIMBOUT. TRIED RESTART INSTEAD SEEING ABOUT LANDING. IMPACT HIGH SPEED CAUSING GREATOR DAMAGE. (.4)THE TAKEOFF FOR THE SIGHTSEEING FLIGHT SEEMED NORMAL UNTIL APPROXIMATELY 500 FEET AGL.  THE PILOT OBSERVED THE AIRSPEED DECREASING AND THE MANIFOLD PRESSURE DROP FROM 36.5 INCHES TO 23 INCHES.  HE TURNED THE AUXILIARY FUEL PUMP ON AND WAS UNABLE TO RESTART THE ENGINE.  HE PERFORMED A FORCED LANDING IN ROUGH, SANDY TERRAIN.  POSTCRASH EXAMINATION OF THE AIRPLANE REVEALED THAT THE UPPER INDUCTION TUBE, WHICH CONDUCTED COMPRESSED TURBOCHARGER INTAKE AIR TO THE THROTTLE BODY, WAS FOUND SEPARATED AT A RUBBER CONNECTING SLEEVE APPROXIMATELY 10 INCHES PRIOR TO THE THROTTLE BODY.  SCENIC AIRLINES MAINTENANCE PERSONNEL HAD INSTALLED A REMANUFACTURED ZERO TIME ENGINE ON JULY 30, 1996.  THE T207A INFORMATION MANUAL DID NOT PROVIDE ABNORMAL OPERATING PROCEDURES FOR CONTINUED ENGINE OPERATION FOLLOWING TURBOCHARGER FAILURE. THERE IS NO CURRENT FAA REQUIREMENT TO INCLUDE INFORMATION REGARDING THE PROPER OPERATION OF AN AIRPLANE BY THE AIRCRAFT MANUFACTURER IN THE EVENT OF A LOSS OF COMPRESSED INDUCTION AIR WHILE FLYING A TURBOCHARGED AIRPLANE.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB FTW98FA157](https://openairdocs.org/ntsb/FTW98FA157), Mar 24, 1998: Cessna T207A (N73780), Monument Valley, UT, substantial damage. Probable cause: The engine's total power loss due to the induction air ducting separating because of inadequate maintenance by company personnel. Factors were the failure of the manufacturer to provide non-standard…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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