- Date
- April 28, 1975
- Place
- San Juan, PR · SAN JUAN, PR
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N9781CHiller Acft UH-12E
- Status
- Completed · report August 4, 1975
- Report
- Brief approved by the director
- FAA report
- 19750428009459A
- Case key
- 148740
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 ---------------------------------------------------------------------------------------------------------------------------- 3-1590 75/4/28 SAN JUAN,PR HILLER ACFT UH-12E CR- 0 0 1 MISCELLANEOUS COMMERCIAL, AGE 42, 6381 TIME - N9781C PX- 0 0 1 TEST TOTAL HOURS, 1644 IN DAMAGE-SUBSTANTIAL OT- 0 0 0 TYPE, NOT INSTRUMENT RATED. NAME OF AIRPORT - PUERTO RICO INTL DEPARTURE POINT INTENDED DESTINATION SAN JUAN,PR LOCAL TYPE OF ACCIDENT PHASE OF OPERATION COLLISION WITH GROUND/WATER: UNCONTROLLED IN FLIGHT: HOVERING PROBABLE CAUSE(S) PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL) ROTORCRAFT - FLIGHT CONTROL SYSTEMS: CYCLIC PITCH CONTROL SYSTEM MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED REMARKS- CYCLIC RODS IMPROPERLY CONNECTED TO BELLCRANKS.MOVEMENT IN FORE AFT DIR RESULTED LATERAL CTL INPUT
Aircraft
- Registration
- N9781C
- Reported as
- Hiller Acft UH-12E
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
- Airport
- Puerto Rico Intl
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.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.