- Date
- May 31, 1965
- Place
- Martha Lake, WA · MARTHA LAKE, WA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N5901XBrantly B-2
- Status
- Completed · report October 4, 1965
- Report
- Brief approved by the director
- Case key
- 178207
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 ---------------------------------------------------------------------------------------------------------------------------- 2-0511 65/5/31 MARTHA LAKE WASH BRANTLY B-2 CR- 0 0 2 INSTRUCTIONAL COMMERCIAL, FL.INSTR., TIME - 1200 N5901X PX- 0 0 0 DUAL AGE 36, 400 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 150 IN TYPE, NOT INSTRUMENT RATED. NAME OF AIRPORT - MARTHA LAKE TYPE OF ACCIDENT PHASE OF OPERATION ROLL OVER TAKEOFF: VERTICAL PROBABLE CAUSE(S) DUAL STUDENT - IMPROPER OPERATION OF FLIGHT CONTROLS PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT REMARKS- ONE ROTOR BLADE NOT FOUND
Aircraft
- Registration
- N5901X
- Reported as
- Brantly B-2
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
- Airport
- Martha Lake
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 N5901X · 1
Matched to the same aircraft by N-number and date.