- Date
- July 9, 1971
- Place
- Spencer, IA · SPENCER, IA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Uncontrolled descent
- Aircraft
- N2161UBrantly B2B
- Status
- Completed · report March 2, 1972
- Report
- Brief approved by the director
- Case key
- 162598
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 ---------------------------------------------------------------------------------------------------------------------------- 3-2459 71/7/9 SPENCER,IOWA BRANTLY B2B CR- 0 0 1 MISCELLANEOUS COMMERCIAL, AGE 33, 551 TIME - 2130 N2161U PX- 0 0 0 TEST TOTAL HOURS, 478 IN TYPE, DAMAGE-SUBSTANTIAL OT- 0 0 0 NOT INSTRUMENT RATED. NAME OF AIRPORT - SPENCER DEPARTURE POINT INTENDED DESTINATION SPENCER,IOWA LOCAL TYPE OF ACCIDENT PHASE OF OPERATION COLLISION WITH GROUND/WATER: CONTROLLED IN FLIGHT: UNCONTROLLED DESCENT PROBABLE CAUSE(S) ROTORCRAFT - FLIGHT CONTROL SYSTEMS: STABILIZING SURFACES-DAMPERS MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE REMARKS- LEAD-LAG DAMPER FAILED CAUSING R/B HOP.DESCENT UNCONTROLLABLE.
Aircraft
- Registration
- N2161U
- Reported as
- Brantly B2B
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
- Airport
- Spencer
N2161URegistration cancelled Sep 16, 2014 · Brantly B-2BAirframe modelBrantly B-2BEngine modelLycoming O&VO-360 series
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 N2161U · 3
Matched to the same aircraft by N-number and date.
NTSB FTW84LA381Accident · No injuriesLimited investigationFinal reportAlvin, TXThe helicopter experienced an unexplained power loss. An emergency landing was attempted but the helicopter collided with a ditch. Lacking sufficient rotor RPM for efective control the helicopter nosed over. The plt was mailed an NTSB 6120.1 form to complete…NTSB MKC73DCD12Accident · No injuriesClosedMarshalltown, IANTSB UNK64X1811Accident · No injuriesClosedPort Jefferson, NY