- Date
- October 23, 1974
- Place
- Jackson, MI · JACKSON, MI
- Injuries
- 2 serious, 1 minor, 14 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N140JBeech 99
- Status
- Completed · report April 18, 1975
- Report
- Brief approved by the director
- Safety recommendations
- Yes
- Case key
- 79389
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-4317 74/10/23 JACKSON,MICH BEECH 99 CR- 0 2 0 COMMERCIAL AIRLINE TRANSPORT, AGE TIME - 1027 N140J PX- 0 0 15 COMMUTER AIR CARRIER 29, 3500 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 AIR TAXI-PASSG S-D 2500 IN TYPE, INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION LAST ENROUTE STOP DETROIT,MICH RETURN CHICAGO,ILL TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION IN FLIGHT: NORMAL CRUISE PROBABLE CAUSE(S) POWERPLANT - REDUCTION GEAR ASSEMBLY: BEARING,REDUCTION GEAR POWERPLANT - TURBINE ASSEMBLY: BLADE,TURBINE WHEEL MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT. REMARKS- 1ST STAGE REDUCTION PLANET GR FAILED CAUSING PWR TURBINE DISC DECOUPLE.FRAGMENTS INJURED BOTH PLTS
Aircraft
- Registration
- N140J
- Reported as
- Beech 99
- Category
- Airplane
- Engine
- turbo prop
- Damage
- Substantial damage
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Other investigations on N140J · 1
Matched to the same aircraft by N-number and date.