# Hughes OH-6A - Type: Aircraft model (FAA registry) - Registry code: 4470905 - Manufacturer (registry): HUGHES - Model: OH-6A - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 · Turbo-shaft - Seats: 4 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS H3WE](https://openairdocs.org/tcds/H3WE) (OpenAirDocs) - Holder: MD Helicopters LLC - Registered aircraft: 24 - Page: https://openairdocs.org/model/hughes-oh-6a Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (24) - [N239MY](https://openairdocs.org/aircraft/N239MY): [Southern Aircraft Consultancy Inc Trustee](https://openairdocs.org/faa-owner/SOUTHERN%20AIRCRAFT%20CONSULTANCY%20INC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), S/N 68-17172 - [N26JK](https://openairdocs.org/aircraft/N26JK): [Usda Aphis Ws Atoc](https://openairdocs.org/faa-owner/USDA%20APHIS%20WS%20ATOC), [Cedar City, UT](https://openairdocs.org/faa-place/UT/Cedar%20City), built 1967, S/N 67-16681 - [N364MD](https://openairdocs.org/aircraft/N364MD): [Dudley Kenneth P](https://openairdocs.org/faa-owner/DUDLEY%20KENNETH%20P), [Pocahontas, IA](https://openairdocs.org/faa-place/IA/Pocahontas), S/N 6716001 - [N369AJ](https://openairdocs.org/aircraft/N369AJ): [Vohs John B](https://openairdocs.org/faa-owner/VOHS%20JOHN%20B), [Shelby Township, MI](https://openairdocs.org/faa-place/MI/Shelby%20Township), built 1967, S/N 65-12965 - [N369GF](https://openairdocs.org/aircraft/N369GF): [Barber Mark E](https://openairdocs.org/faa-owner/BARBER%20MARK%20E), [Trail, OR](https://openairdocs.org/faa-place/OR/Trail), S/N 67-16092 - [N369LE](https://openairdocs.org/aircraft/N369LE): [City Of Oxford Alabama Police Department](https://openairdocs.org/faa-owner/CITY%20OF%20OXFORD%20ALABAMA%20POLICE%20DEPARTMENT), [Oxford, AL](https://openairdocs.org/faa-place/AL/Oxford), built 1968, S/N 68-17241 - [N371BD](https://openairdocs.org/aircraft/N371BD): [Anacoco, LA](https://openairdocs.org/faa-place/LA/Anacoco), S/N 67-16155, Registration pending - [N4191T](https://openairdocs.org/aircraft/N4191T): [Wilson Robert B](https://openairdocs.org/faa-owner/WILSON%20ROBERT%20B), [Superior, AZ](https://openairdocs.org/faa-place/AZ/Superior), built 1968, S/N 67-16164 - [N4209G](https://openairdocs.org/aircraft/N4209G): [Mhoc LLC](https://openairdocs.org/faa-owner/MHOC%20LLC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1968, S/N 69-16026 - [N46SP](https://openairdocs.org/aircraft/N46SP): [Kentucky State Police](https://openairdocs.org/faa-owner/KENTUCKY%20STATE%20POLICE), [Frankfort, KY](https://openairdocs.org/faa-place/KY/Frankfort), built 1968, S/N 1280950 - [N6186Y](https://openairdocs.org/aircraft/N6186Y): [Motts Military Museum Inc](https://openairdocs.org/faa-owner/MOTTS%20MILITARY%20MUSEUM%20INC), [Groveport, OH](https://openairdocs.org/faa-place/OH/Groveport), S/N 69-15990 - [N6188H](https://openairdocs.org/aircraft/N6188H): [Usda Aphis Ws Atoc](https://openairdocs.org/faa-owner/USDA%20APHIS%20WS%20ATOC), [Cedar City, UT](https://openairdocs.org/faa-place/UT/Cedar%20City), S/N 68-17144 - [N6248](https://openairdocs.org/aircraft/N6248): [Reynolds Darryl G](https://openairdocs.org/faa-owner/REYNOLDS%20DARRYL%20G), [Wills Point, TX](https://openairdocs.org/faa-place/TX/Wills%20Point), S/N 67-16248 - [N6249X](https://openairdocs.org/aircraft/N6249X): [Reynolds Aviation LLC](https://openairdocs.org/faa-owner/REYNOLDS%20AVIATION%20LLC), [Lewes, DE](https://openairdocs.org/faa-place/DE/Lewes), S/N 67-16358 - [N6252S](https://openairdocs.org/aircraft/N6252S): [Statham David P](https://openairdocs.org/faa-owner/STATHAM%20DAVID%20P), [Battle Ground, WA](https://openairdocs.org/faa-place/WA/Battle%20Ground), S/N 67-16117 - [N6637N](https://openairdocs.org/aircraft/N6637N): [Usda Aphis Ws Atoc](https://openairdocs.org/faa-owner/USDA%20APHIS%20WS%20ATOC), [Cedar City, UT](https://openairdocs.org/faa-place/UT/Cedar%20City), S/N 6716590 - [N6638P](https://openairdocs.org/aircraft/N6638P): [Usda Aphis Ws Atoc](https://openairdocs.org/faa-owner/USDA%20APHIS%20WS%20ATOC), [Cedar City, UT](https://openairdocs.org/faa-place/UT/Cedar%20City), S/N 67-16333 - [N6638U](https://openairdocs.org/aircraft/N6638U): [Usda Aphis Ws Atoc](https://openairdocs.org/faa-owner/USDA%20APHIS%20WS%20ATOC), [Cedar City, UT](https://openairdocs.org/faa-place/UT/Cedar%20City), S/N 6716030 - [N6640K](https://openairdocs.org/aircraft/N6640K): [Usda Aphis Ws Atoc](https://openairdocs.org/faa-owner/USDA%20APHIS%20WS%20ATOC), [Cedar City, UT](https://openairdocs.org/faa-place/UT/Cedar%20City), S/N 66-16110 - [N6640Z](https://openairdocs.org/aircraft/N6640Z): [Usda Aphis Ws Atoc](https://openairdocs.org/faa-owner/USDA%20APHIS%20WS%20ATOC), [Cedar City, UT](https://openairdocs.org/faa-place/UT/Cedar%20City), S/N 66-16076 - [N6641A](https://openairdocs.org/aircraft/N6641A): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), S/N 66-07799 - [N67PB](https://openairdocs.org/aircraft/N67PB): [Tradewind International LLC](https://openairdocs.org/faa-owner/TRADEWIND%20INTERNATIONAL%20LLC), [Janesville, WI](https://openairdocs.org/faa-place/WI/Janesville), built 1968, S/N 480411 - [N711MV](https://openairdocs.org/aircraft/N711MV): [Mac-V LLC](https://openairdocs.org/faa-owner/MAC-V%20LLC), [Central Point, OR](https://openairdocs.org/faa-place/OR/Central%20Point), S/N 69-16042 - [N8525Y](https://openairdocs.org/aircraft/N8525Y): [Grove Karl P](https://openairdocs.org/faa-owner/GROVE%20KARL%20P), [Redlands, CA](https://openairdocs.org/faa-place/CA/Redlands), built 1969, S/N 67-16493 ## NTSB investigations (28) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB WPR25LA101](https://openairdocs.org/ntsb/WPR25LA101), Feb 22, 2025: Hughes OH-6A (N4191T), Santa Teresa, NM, substantial damage. Probable cause: The flight instructor's failure to maintain helicopter control during a practice autorotation, which resulted in a hard landing and structural damage to the tail boom and subsequent failure of the… - [NTSB WPR21LA107](https://openairdocs.org/ntsb/WPR21LA107), Feb 5, 2021: Hughes OH-6A (N6639R), Horseshoe Bend, ID, substantial damage. Probable cause: A partial loss of engine power due to a leak in the fuel cell outlet valve. - [NTSB ERA20LA071](https://openairdocs.org/ntsb/ERA20LA071), Jan 8, 2020: Hughes OH 6A (N6186U), Preston, GA, substantial damage. Probable cause: A partial loss of engine power for reasons that could not be determined based on the available information. - [NTSB GAA17CA135](https://openairdocs.org/ntsb/GAA17CA135), Feb 8, 2017: Hughes OH 6A (N6640Z), Price, UT, substantial damage. Probable cause: The fuel truck driver’s failure to stop before impacting the helicopter’s main rotor blades. - [NTSB CEN13FA205](https://openairdocs.org/ntsb/CEN13FA205), Mar 26, 2013: Hughes OH-6A (N910WC), Caddo, TX, substantial damage, 1 fatal. Probable cause: The pilot’s failure to maintain control of the helicopter during landing. - [NTSB ERA13GA046](https://openairdocs.org/ntsb/ERA13GA046), Nov 4, 2012: Hughes OH-6A (N368PD), Atlanta, GA, substantial damage, 2 fatal. Probable cause: The pilot's failure to maintain sufficient altitude during maneuvering flight, which resulted in his failure to see and avoid a power pole and wires. - [NTSB ERA13LA022](https://openairdocs.org/ntsb/ERA13LA022), Oct 13, 2012: Hughes 369A (N369SN), West Chester, PA, substantial damage. Probable cause: The pilot’s failure to see and avoid the preceding helicopter while maneuvering for landing. Contributing to the accident were the flight lead pilot’s inadequate preflight briefing and in-flight… - [NTSB WPR09TA277](https://openairdocs.org/ntsb/WPR09TA277), Jun 4, 2009: Hughes OH-6A (N6641D), Benson, AZ, substantial damage. Probable cause: The pilot under instruction's inadequate autorotation technique and the instructor pilot’s delayed remedial action to arrest the rate of descent of the helicopter while in an autorotation flare. - [NTSB DFW08TA066](https://openairdocs.org/ntsb/DFW08TA066), Feb 8, 2008: Hughes OH-6 (N66372), Valentine, TX, substantial damage. Probable cause: The contract mechanic's failure to properly secure the castellated nut that attached the governor lever control rod to the idler bell crank. Contributing to the accident was the lack of maintenance… - [NTSB LAX05TA018](https://openairdocs.org/ntsb/LAX05TA018), Oct 25, 2004: Hughes OH-6A (N6188L), Tucson, AZ, destroyed. Probable cause: The loss of engine power due to a fatigue fracture of the PC line from the governor to fuel control, resulting from fretting damage induced by excessive vibration, which was due to the failure of… - [NTSB LAX05TA008](https://openairdocs.org/ntsb/LAX05TA008), Oct 15, 2004: Hughes OH-6A (N6639R), Jacumba, CA, substantial damage. Probable cause: the pilot's failure to maintain adequate clearance from the mountainous terrain, which resulted in the helicopter's tail rotor blades impacting rocks. A factor in the accident was the pilot's… - [NTSB ATL04LA037](https://openairdocs.org/ntsb/ATL04LA037), Nov 15, 2003: Hughes OH-6A (N536), Greenville, SC, substantial damage. Probable cause: The pilot's improper landing flare, resulting in a hard landing and a main rotor/tailboom strike. - [NTSB FTW04TA012](https://openairdocs.org/ntsb/FTW04TA012), Oct 7, 2003: Hughes OH-6A (N8524Z), Eagle Pass, TX, substantial damage. Probable cause: The failure of the aft segment of the tail rotor drive shaft for undertermined reasons. A contibuting factor was the lack of suitable terrain for the foced landing. - [NTSB LAX03TA150](https://openairdocs.org/ntsb/LAX03TA150), May 12, 2003: Hughes OH 6A (N6636H), Pan Tak, AZ, destroyed. Probable cause: The pilot in command's failure to adequately secure loose cargo (a jacket), which resulted in the jacket colliding with the tail rotor during cruise flight, and the subsequent separation of the tail… - [NTSB MIA02LA029](https://openairdocs.org/ntsb/MIA02LA029), Nov 25, 2001: Hughes OH-6A (N129BC), Hernando, MS, substantial damage. Probable cause: The flight instructor's improper supervision of the dual student during a practice autorotation landing by allowing an excessive aft pitch attitude and low main rotor rpm conditions to develop during… - [NTSB LAX00TA163](https://openairdocs.org/ntsb/LAX00TA163), Apr 20, 2000: Hughes OH-6A (N61869), Green Valley, AZ, substantial damage. Probable cause: Company maintenance personnel's failure to secure an attachment nut to a control link. While maneuvering, the parts separated and resulted in the total cyclic control system failure and impact into… - [NTSB FTW00TA116](https://openairdocs.org/ntsb/FTW00TA116), Apr 13, 2000: Hughes OH-6A (N6187Y), El Paso, TX, substantial damage. Probable cause: The failure of the pilot to maintain rotor rpm during an autorotation, which resulted in a hard landing. A factor was the partial loss of engine power resulting from the separation of the power… - [NTSB MIA00GA057](https://openairdocs.org/ntsb/MIA00GA057), Dec 20, 1999: Hughes OH-6A (N72LC), Fort Myers, FL, substantial damage. Probable cause: improper maintenance inspection of the helicopter by unknown maintenance personnel, resulting in a worn control rod bearing being continued in service, and subsequent separation, resulting in an… - [NTSB MIA99TA206](https://openairdocs.org/ntsb/MIA99TA206), Jul 29, 1999: Hughes OH-6A (N66377), Aguadilla, PR, substantial damage. Probable cause: An unidentified foreign object passing through the oil cooler blower assembly resulting in fracture and seizure of the oil cooler blower, and slowing of the main transmission and main rotor, which… - [NTSB LAX99GA216](https://openairdocs.org/ntsb/LAX99GA216), Jun 15, 1999: Hughes OH-6A (N6187C), Tucson, AZ, destroyed. Probable cause: Fuel exhaustion resulting from pilot's failure to perform adequate fuel consumption calculations. The unreliable and inoperative fuel level indicating system components and the operator's operation… - [NTSB FTW99GA061](https://openairdocs.org/ntsb/FTW99GA061), Dec 27, 1998: Hughes OH-6A (N6638R), Laredo, TX, substantial damage. Probable cause: The loss of engine power as result of the failure of the power turbine governor. A factor was the lack of suitable terrain available to the pilot for the forced landing. - [NTSB FTW97TA162](https://openairdocs.org/ntsb/FTW97TA162), Apr 15, 1997: Hughes OH-6A (N6638P), Marfa, TX, substantial damage. Probable cause: the pilot's improper touchdown, and the designated examiner's inadequate supervision. The light condition at dusk was a related factor. - [NTSB LAX96TA016](https://openairdocs.org/ntsb/LAX96TA016), Oct 20, 1995: Hughes OH-6A (N61865), Imperial, CA, substantial damage. Probable cause: The pilot's improper planning/decision and failure to ensure there was an adequate supply of fuel, which led to fuel exhaustion and a forced (autorotative) landing. - [NTSB MIA95TA188](https://openairdocs.org/ntsb/MIA95TA188), Jul 21, 1995: McDonnell Douglas H369 (N129BC), Panama City, FL, substantial damage. Probable cause: The pilot-in-command's improper aft application of cyclic control during a simulated touchdown autorotation on landing flare touchdown, resulting in the main rotor blades colliding with the tail boom… - [NTSB LAX94T#A07](https://openairdocs.org/ntsb/LAX94T%23A07), Jun 26, 1994: McDonnell Douglas OH-6A (N5473X), Ocotillo, CA, substantial damage - [NTSB FTW94T#A02](https://openairdocs.org/ntsb/FTW94T%23A02), Jun 21, 1994: Hughes OH-6A (N6636G), Valentine, TX, destroyed - [NTSB LAX93T#A07](https://openairdocs.org/ntsb/LAX93T%23A07), Sep 19, 1993: Hughes OH-6A (N97BP), San Diego, CA, destroyed - [NTSB FTW93T#A02](https://openairdocs.org/ntsb/FTW93T%23A02), Dec 1, 1992: Hughes OH-6A (BP) (N6638J), Marfa, TX, substantial damage ## FAA accident and incident reports (22) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20250222002299A](https://openairdocs.org/incident/20250222002299A), Feb 22, 2025: Hughes OH-6A (N4191T), Santa Teresa, NM, Substantial damage. On February 22, 2025, at or around 16:20 MST, a Hughes OH-6 tail rotor struck the tail boom and crashed (accident) at Dona ana county municipal airport (dna),… - [Accident 20210205001189A](https://openairdocs.org/incident/20210205001189A), Feb 5, 2021: Hughes OH-6A (N6639R), Horseshoe Bend, ID, Substantial damage. During a predator mitigation flight and while in a hover the pilot moved to line up a shot on a wolf and at very low airspeed and altitude the engine spooled… - [Accident 20200108007629A](https://openairdocs.org/incident/20200108007629A), Jan 8, 2020: Hughes OH-6A (N6186U), Preston, GA, Substantial damage. On January 8, 2020, a Hughes OH-6A, N6186U, was substantially damaged following a loss of engine power and subsequent autorotation near Preston, Georgia. The… - [Accident 20130326004129A](https://openairdocs.org/incident/20130326004129A), Mar 26, 2013: Hughes OH-6A (N910WC), Caddo, TX, Destroyed, 1 fatal. On March 26, 2013, at approximately 1337 CDT, a commercial pilot was operating the OH6A helicopter and lost tail rotor effectiveness (lte), while descending… - [Accident 20121103024469A](https://openairdocs.org/incident/20121103024469A), Nov 3, 2012: Hughes OH-6A (N368PD), Atlanta, GA, Destroyed, 2 fatal. The public use aircraft was manuvering between 500 and 400 feet AGL when it descended for unknown reasons. It hit a pole with it's skids and crashed in the… - [Accident 20121013023732A](https://openairdocs.org/incident/20121013023732A), Oct 13, 2012: Hughes OH-6A (N369SN), West Chester, PA, Substantial damage. On Saturday, October 13, 2012, at approximately 0920 local time, a five-ship formation of Hughes 500 helicopters from lancaster airport, PA (lnr) arrived to… - [Accident 20090604018059A](https://openairdocs.org/incident/20090604018059A), Jun 4, 2009: Hughes OH6A (N6641D), Benson, AZ, Substantial damage. (-23) While practicing autorotation procedures, touched, down, aircraft jumped off runway, not enough RPM to maintain flight. Contracted ground second time and… - [Accident 20080209010439A](https://openairdocs.org/incident/20080209010439A), Feb 9, 2008: Hughes OH6A (N66372), Valentine, TX, Substantial damage. (-23) On February 9, 2008, at approximately 1115 CST, the pilot [privacy data omitted] was operating N66372, a Hughes 500/OH6A, owned by the us border patrol… - [Accident 20041025029609A](https://openairdocs.org/incident/20041025029609A), Oct 25, 2004: Hughes OH6A (N6188L), Sells, AZ, Destroyed. (-23) On October 25, 2004, N6188L, a border patrol OH-6 helicopter was hovering at approximately 50 feet during a routine search when the engine quit. The… - [Accident 20041015028309A](https://openairdocs.org/incident/20041015028309A), Oct 15, 2004: Hughes OH6A (N6639R), Jacumba, CA, Minor damage. (-23) On October 15, 2004, about 0115 PDT, a Hughes operated by us border patrol collided with the terrain while performing low altitude maneuvers. According… - [Incident 20040202002579I](https://openairdocs.org/incident/20040202002579I), Feb 2, 2004: Hughes OH6A (N5473X), Yuma, AZ, Minor damage. (-23) Upon returning to "jmar" the Yuma station, the pilot was flying normally @ 500' (AGL) then flared to a hover @ 50' (AGL). A loud "humming" noise could be… - [Accident 20031115027899A](https://openairdocs.org/incident/20031115027899A), Nov 15, 2003: Hughes OH6A (N536), Greenville, SC, Substantial damage. (-23) On November 15, 2003, at approximately 1015 local, a Hughes 369-A, registration number N536, helicopter impacted terrain after losing the aft section of… - [Accident 20030512010529A](https://openairdocs.org/incident/20030512010529A), May 12, 2003: Hughes OH6A (N6636H), Pantak, AZ, Destroyed. (-23) On may 12, 2003, a Hughes oh 6A, public-use helicopter operated by the U.S. Border patrol collided with terrain and was destroyed. The pilot reported… - [Accident 20021031037779A](https://openairdocs.org/incident/20021031037779A), Oct 31, 2002: Hughes OH6A (N817SC), Marietta, PA, Destroyed. (-23) On October 31, 2002, at 1721 hours local eastern daylight savings time, a Hughes helicopter HU-369-OH6A, N817SC, flew into the susquehanna river while… - [Accident 20011125031789A](https://openairdocs.org/incident/20011125031789A), Nov 25, 2001: Hughes OH6A (N129BC), Hernando, MS, Substantial damage. (-23) During auto rotation to ground, instructor pilot noticed aircraft descending too rapidly but could not recover in time. (.4) on November 25, 2001, about… - [Accident 20000420036799A](https://openairdocs.org/incident/20000420036799A), Apr 20, 2000: Hughes OH6A (N61869), Green Valley, AZ, No damage. (-23) On April 20, 2000, at approx. 0730 local time, N61869, HU-369-0H6A, operated by the U.S. Border patrol air operations unit, made a forced landing near… - [Accident 19991220037039A](https://openairdocs.org/incident/19991220037039A), Dec 20, 1999: Hughes OH6A (N72LC), Fort Myers, FL, Substantial damage. (.19) On December 20, about 0800 eastern standard time, a Hughes OH-6A, N72LC, registered to and operated by lee county sheriff's department as a title 14 CFR… - [Accident 19990615007109A](https://openairdocs.org/incident/19990615007109A), Jun 15, 1999: Hughes OH6A (N6187C), Tucson, AZ, Destroyed. U.S. Border patrol air operations Hughes OH-6A helicopter was on short final to rwy 03 when the pilot stated that the engine had quit, and the acft crashed… - [Incident 19980128003209I](https://openairdocs.org/incident/19980128003209I), Jan 28, 1998: Hughes OH6A (N17WW), El Paso, TX, Minor damage. Narrative: on January 28, 1998 at 15:40 MST, a Hughes OH-6A, N17WW, registered to the us border patrol, experienced a hard landing at West Texas Airport, El… - [Accident 19970414037699A](https://openairdocs.org/incident/19970414037699A), Apr 14, 1997: Hughes OH6A (N6638P), Marfa, TX, Substantial damage. Night practice autorotation. Night recurrent training. Rocked back on skids. Student used aft cyclic. Chopped tail. - [Accident 19951020047099A](https://openairdocs.org/incident/19951020047099A), Oct 20, 1995: Hughes OH6A (N61865), Imperial, CA, Substantial damage. Border patrol helicopter made hard auto landing due power loss. Fuel exhausted. Failed to note low fuel light. - [Accident 19950721019269A](https://openairdocs.org/incident/19950721019269A), Jul 21, 1995: Hughes OH6A (N129BC), Panama City, FL, Substantial damage. Rocked forward and backwards on landing during practice autorotation. Main rotors struck the tailboom. ## Service difficulty reports (6) As reported by operators and repair stations, by the model named in the report. - [SDR R81R2016FA0000014](https://openairdocs.org/sdr/R81R2016FA0000014), Jan 8, 2016: ABRASION STRIP. DEPARTED. PILOT REPORTED NOISE THEN IMMEDIATE SEVERE VIBRATION WHILE TRANSITIONING FROM HOVER TO FWD FLIGHT APPORXIMATELY 12" ABOVE GROUND TO ROTOR. ACFT WAS LANDED WITHO - [SDR 98ZZZX1880](https://openairdocs.org/sdr/98ZZZX1880), Apr 2, 1998: DAMPENER SUPPORT. CRACKED. DURING A 300-HOUR INSPECTION, A CRACK WAS NOTICED ON THE TAIL ROTOR DRIVE SHAFT DAMPENER SUPPORT. AFTER REMOVING TAIL BOOM, THE CRACK WAS ABOUT .75 INCHES LONG - [SDR 98ZZZX1390](https://openairdocs.org/sdr/98ZZZX1390), Mar 6, 1998: SKIN. CRACKED. DURING AN INSPECTION, A 4 INCH CRACK WAS FOUND ON TOP OF HORIZONTAL STABILIZER INBOARD OF THE HORIZONTAL SUPPPORT BRACKET. THE SKIN OF THE HORIZONTAL STABILIZER - [SDR 98ZZZX1389](https://openairdocs.org/sdr/98ZZZX1389), Mar 6, 1998: SKIN. CRACKED. DURING INSPECTION, A 1 INCH CRACK WAS FOUND ON TOP OF THE HORIZONTAL STABILIZER. ALSO, A .25 INCH CRACK WAS FOUND SAME AREA, BUT ON BOTTOM SIDE OF HORIZONTAL ST - [SDR 96ZZZX5617](https://openairdocs.org/sdr/96ZZZX5617), Oct 1, 1996: REGULATOR. FAILED. SHORTLY AFTER TAKEOFF, VOLTAGE REGULATOR FAILURE CONTRIBUTED TO SLIGHT SMOKE EMITTING FROM COMPONENT. PRECAUTIONARY LANDING MADE, W/H CONNECTOR DISCONNECTED FRO - [SDR 96ZZZX1385](https://openairdocs.org/sdr/96ZZZX1385), Jan 22, 1996: ELT. WIRE BROKEN. WEAK TRANSMISSION BATTERY VOLTAGE GOOD. WIRE BROKEN OFF ANTENNA CONNECTOR INSIDE TRANSMITTER FROM CIRCUIT BOARD. RETURNED TO MANUFACTURER FOR REPAIR. ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Jerry D Laza OH6-A (369A)](https://openairdocs.org/model/jerry-d-laza-oh6-a-369a): 1 registered aircraft, registry code 056344B - [Hughes/Drees David Lee OH6A](https://openairdocs.org/model/hughes-drees-david-lee-oh6a): 0 registered aircraft, registry code 4470902 - [Hughes/Mastrianni Robert OH-6A](https://openairdocs.org/model/hughes-mastrianni-robert-oh-6a): 0 registered aircraft, registry code 4470906 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.