- Date
- July 14, 1969
- Place
- Helena, MT · HELENA, MT
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N5987XBrantly B-2
- Status
- Completed · report August 14, 1969
- Report
- Brief approved by the director
- Case key
- 167522
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 ---------------------------------------------------------------------------------------------------------------------------- 3-1935 69/7/14 HELENA,MONT BRANTLY B-2 CR- 0 0 1 INSTRUCTIONAL STUDENT, AGE 28, 40 TOTAL TIME - 1915 N5987X PX- 0 0 0 TRAINING HOURS, 28 IN TYPE, NOT DAMAGE-SUBSTANTIAL OT- 0 0 0 INSTRUMENT RATED. TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION IN FLIGHT: NORMAL CRUISE HARD LANDING LANDING: POWER-OFF AUTOROTATIVE LANDING PROBABLE CAUSE(S) POWERPLANT - FUEL SYSTEM: CARBURETOR MISCELLANEOUS ACTS,CONDITIONS - STUCK MISCELLANEOUS ACTS,CONDITIONS - ENGINE LOADED UP PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS FACTOR(S) TERRAIN - ROUGH/UNEVEN COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- RICH MIXTURE DUE TO FLOAT STICKING.IMPROPER FUEL-AIR RATIO WITH RAPID APPLICATION OF CARB HEAT.
Aircraft
- Registration
- N5987X
- Reported as
- Brantly B-2
- Category
- Helicopter
- Engine
- reciprocating
- 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 N5987X · 1
Matched to the same aircraft by N-number and date.