N239CH1981 Boeing-Vertol 234
Safety record in brief:No NTSB accidents or incidents since 1982No ADs since 1998 matched12 service difficulty reports
Registration
FAA Aircraft Registry · Oct 20, 2026- Registered owner
- Columbia Helicopters INC
- Owner type
- Corporation
- City, state
- Aurora, OR
- Certificate issued
- May 4, 2017
- Expires
- May 31, 2027
- Airworthiness
- Experimental · Research and Development
- Airworthiness date
- Mar 14, 2026
We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.
Airframe & engine
FAA Registry + type dataAirframe
- Manufacturer
- Boeing-Vertol
- Model
- 234
- Year
- 1981
- Serial number
- MJ006
- Aircraft type
- Rotorcraft
- Category
- Land
- Certification
- Type Certificated
- Seats
- 44
- Engines
- 2
- Max takeoff weight
- 20,000 and over lb
- Type certificate data sheet
- H9EA
- Mode S code
- A22A29
Engine
- Make and model
- Honeywell Al5512
- Type
- Turbo-shaft
- Power
- 4075 hp
Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history
Ownership history from FAA records- 2017 – nowColumbia Helicopters INCAurora, OR · current
Individual owners are shown by city and state only.
Safety record
NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026NTSB events (0)
No NTSB accidents or incidents found for this airframe since 1982.
Accident history for this modelADs published since 1998 that may apply (0)
These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
No ADs published since 1998 matched this airframe or engine model.
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (12)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
- Engine fuel and control · control box · failedSep 6, 2020
INTERIM SUPPLEMENTAL INFORMATION: THE OVERSPEED CONTROL BOX LISTED BELOW HAS BEEN RETURNED TO THE OEM (HONEYWELL) AND IS PRESENTLY UNDER EVALUATION BY THE OEM AND THE TC HOLDER. THIS SUPPLEMENTAL INFORMATION WILL BE UPDATED ONCE A ROOT CAUSE HAS BEEN ESTABLISHED.
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine controls · control box · failedSep 6, 2020
PILOT ACCOUNT: DURING FIRE FIGHTING MISSION, NR 2 ENGINE ROLLED BACK TO INTERMEDIATE SETTING (LESS THAT FLIGHT RPM WITH RRPM DECAY, ABOVE GROUND IDLE). THIS OCCURRED WHILE DROPPING WATER. EMERGENCY POWER WAS NECESSARY TO MAINTAIN RRPM. AFTER GAINING AIRSPEED AND RECOVERING RRPM, SIC PULLED OUT…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine controls · control box · failedSep 2, 2020
NR 2 ENGINE ROLLBACK ON APPROACH TO WATER SOURCE. ENGINE SECURED PER EMERGENCY ABNORMAL CHECKLIST. COULD NOT FIND ANY DEPENDENCY DURING T/S. REMOVED AND REPLACED NR 2 CONTROL BOX AND ACTUATOR FOR T/S. ALL SUBSEQUENT CHECKS GOOD AND AIRCRAFT RETURNED TO SERVICE.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reportsShow fewer reports
- Engine · engine · power lossSep 17, 2019
ON APPROACH TO DIP SITE NR 2 ENGINE FAILED TO RESPOND. NR 2 HUNG BACK AT AROUND 20% TQ, PILOTS WENT INTO EMERGENCY ENGINE TRIM & MANUALLY BEEPED ENGINE WITH NO RESPONSE. NR 2 ECL WAS BROUGHT BACK TO GROUND POSITION TO AVOID A POTENTIAL OVERSPEED CONDITION. EMERGENCY CHECK LIST DRILLS NR 10 AND NR…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Equipment and furnishings · powerpack · shortedFeb 11, 2018
INFLIGHT, THE PILOT RECEIVED NO RESPONSE FROM THE PUMPS OR GATE VALVE ON THE SEI POWERPACK SYSTEM. THE 25 AMP CIRCUIT BREAKER WAS UNABLE TO BE RESET. PILOTS NOTICED AN ELECTRICAL SMOKE ODOR COMING FROM THE CABIN AREA. AIRCRAFT RETURNED TO BASE. CONFIRMED THE POWER PACK HAS EXPERIENCED AN…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Main rotor drive · bolt · brokenAug 24, 2016
WHILE PERFORMING AD 95-22-09, PARA A, 250 HR SPIRAL BEVEL INSPECTION OF THE AFT TRANSMISSION NR 12 BOLT BROKE DURING INITIAL TORQUE CHECK AT 275" LB.
From FAA Service Difficulty Reports; matched by N-number and serial number. - Main rotor · bar · crackedJun 4, 2003
DURING NORMAL ROTOR HEAD MAINTENANCE, THE TWO REPORTED TIE BARS WERE FOUND WITH NUMEROUS DEFECTS. THE DEFECTS CONSISTED OF SEVERAL CRACKED PLATES AT THE TIE BAR PINHOLE. THE TWO TIE BARS WERE SENT TO THE MANUFACTURER FOR EVALUATION AND AFTER DISASSEMBLY, ADDITIONAL DEFECTS WERE DISCOVERED. A ROTOR…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Rotor flight controls · actuator · malfunctionedSep 23, 1998
PILOT ATTEMPTED TO APPLY SLIGHT AMOUNT OF AFT CYCLIC TO SLOW HELICOPTER AND EXTERNAL LOAD. THE CYCLIC WOULD NOT MOVE AFT OR FORWARD. NO SIGN OF ANYTHING BLOCKING THE CYCLIC MOTION, STILL HAD COLLECTIVE YAW AND ROLL CONTROLS, NO FORE AND AFT CONTROL. PILOT LOWERED COLLECTIVE FOR DESCENT TO A…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Main rotor · sleeve · brokenApr 28, 1997
THE HORIZONTAL HINGE PIN WAS REMOVED FOR A LEAKING SEAL. THE HINGE PIN WAS REMOVED AND THE LEADING SLEEVE REMAINED IN THE BEARING. THE SLEEVE WAS SPLIT AND THE BEARING WAS REMOVED WITH THE SLEEVE STILL INSTALLED. A NEW BEARING AND HORIZONTAL HINGE PIN WERE INSTALLED. THE ROTOR HEAD ASSY A5-1503…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Main rotor · bearing · failedDec 15, 1995
POST-FLIGHT CHECK REVEALED BLACK GREASE RUBBER AND WIRE FRAGMENTS COMING OUT OF THE GAP BETWEEN THE STATIONARY RING AND THE ROTATING RING. UNIT WAS REMOVED AND REPLACED. DISASSEMBLY OF SWASHPLATE SHOWED THE WIRE CAGE SEPARATOR HAD BROKEN UP. PAST FAILURES HAVE BEEN ATTRIBUTED TO FORMING CRACKS…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Showing the 10 most recent of 12 reports.
Sources
- FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
- NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
- FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
- FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026