# Sikorsky CH-54A - Type: Aircraft model (FAA registry) - Registry code: 8142501 - Manufacturer (registry): SIKORSKY - Model: CH-54A - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 · Turbo-shaft - Seats: 20 - Weight class: Up to 12,499 lb - Certification: Not type certificated - Registered aircraft: 1 - Page: https://openairdocs.org/model/sikorsky-ch-54a 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. - [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023 Historical (superseded or no longer in force): - [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021 - [AD 99-07-16](https://openairdocs.org/ad/99-07-16) (historical): Second Stage Lower Planetary Plate · Columbia Helicopters CH-54A and CH-54A. Effective May 6, 1999 ## Registered aircraft (1) - [N429C](https://openairdocs.org/aircraft/N429C): [Siller Helicopters LLC](https://openairdocs.org/faa-owner/SILLER%20HELICOPTERS%20LLC), [Chamblee, GA](https://openairdocs.org/faa-place/GA/Chamblee), built 1967, S/N 67-18429 ## NTSB investigations (2) 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 LAX98FA236](https://openairdocs.org/ntsb/LAX98FA236), Jul 18, 1998: Sikorsky CH-54A (N64KL), Yucca Valley, CA, destroyed, 3 fatal. Probable cause: An in-flight main rotor blade spar separation as a result of the pilot-in-command's decision to continue to fly the aircraft after it had failed an AD directed BIM check. Factors were the failure of… - [NTSB LAX95LA305](https://openairdocs.org/ntsb/LAX95LA305), Aug 26, 1995: Sikorsky CH-54A (N64AR), Emigrant Gap, CA, destroyed. Probable cause: a compressor stall in the right engine for an unknown reason, which resulted in a loss of power in that engine; and inadequate crew coordination between the pilot and copilot, which resulted in their… ## FAA accident and incident reports (2) 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 19980718044219A](https://openairdocs.org/incident/19980718044219A), Jul 18, 1998: Skrsky CH54A (N64KL), Yucca Valley, CA, Destroyed, 3 fatal. (.19)On July 18, 1998, at 1625 hours pacific daylight time, a Sikorsky CH-54A, N54KL, en route to apple valley California, crashed after experiencing a main… - [Accident 19950826026019A](https://openairdocs.org/incident/19950826026019A), Aug 26, 1995: Skrsky CH54B (N64AR), Emigrant Gap, CA, Destroyed. Explosion lifting logs. Pitched up, rolled. Compressor stall NR1 engine. Failed release logs and use se procedures. ## Service difficulty reports (7) As reported by operators and repair stations, by the model named in the report. - [SDR H3V2007F00000](https://openairdocs.org/sdr/H3V2007F00000), Jul 8, 2007: PIN. MISSING. ON JULY 8, 2007, HLH EXPERIENCED A HARD GROUND ROLLOVER OF AC. INITIAL INSPECTION OF THE WRECKAGE REVEALED A SERVO PIN, PN 6465-20201-101, FROM THE LT LATERAL S - [SDR HL01102006001](https://openairdocs.org/sdr/HL01102006001), Oct 31, 2006: BEARING. FAILED. MAIN GEAR BOX BEGAN MAKING METAL, THIS WAS NONFERROUS METAL, UPON REMOVAL AND DISASSEMBLY IT WAS DISCOVERED THAT THE 1ST STAGE PLANETARY BEARING, P/NSB2410-2 HA - [SDR H3V2005F00000](https://openairdocs.org/sdr/H3V2005F00000), Jul 19, 2005: STATOR. DAMAGED. FOD DAMAGE FROM RIVETS OF THE 1ST STAGE STATOR REAR AIRSEAL (2ND STAGE) DAMAGED THE COMPRESSOR BLADES. THIS CAUSED A STALL AND THE T5 TEMP ROSE TO 1000 DEGREES - [SDR JYD2001F00001](https://openairdocs.org/sdr/JYD2001F00001), Jun 20, 2001: SHAFT. CRACKED. EIGHT CRACKS FOUND IN LOWER SPLINES OF MAIN ROTOR SHAFT. MAIN GEARBOX PN 6435200400065, SN A6171 WAS REMOVED FOR OVERHAUL HAVING A TOTAL TIME OF 8857.7 AND 1430 - [SDR 20000404SH006](https://openairdocs.org/sdr/20000404SH006), Nov 4, 1999: PUMP. INOPERATIVE. UNIT WAS INOPERABLE. RETURNED TO STOCK. BENCH CHECKED BAD, WINDING SHORTED, LEAKING AROUND ELECTRICAL LEADS. REPLACED COMPLETE UNIT WITH AN EXTERNALLY MOUNTED F - [SDR CHI1791](https://openairdocs.org/sdr/CHI1791), May 23, 1997: LOCKED IN STUD. BROKE. M/R BLADE STUD BROKE (IN TENSION) DIRECTLY BELOW LOCK RING SPLINES ABOVE FIRST THREAD. REPLACED AFFECTED MAIN ROTOR BLADE WITH SERVICEABLE BLADE. - [SDR CHI1752](https://openairdocs.org/sdr/CHI1752), Mar 26, 1997: INTERMED GEARBOX. CRACKED. UPON INSPECTION IAW COLUMBIA HELICOPTERS SB 54-65-2, THE LEFT LOWER INTERMEDIATE GEARBOX MOUNT LUG WAS FOUND CRACKED. THIS WAS FOUND BY FLUORESCENT PENETRANT AN ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Siller Helicopters CH-54A](https://openairdocs.org/model/siller-helicopters-ch-54a): 3 registered aircraft, registry code 8142567 - [Helicopter Transport SVC CH-54A](https://openairdocs.org/model/helicopter-transport-svc-ch-54a): 1 registered aircraft, registry code 4450002 - [Aviation International Rotors CH-54A](https://openairdocs.org/model/aviation-international-rotors-ch-54a): 1 registered aircraft, registry code 8142507 - [Evergreen Helicopters CH-54A](https://openairdocs.org/model/evergreen-helicopters-ch-54a): 1 registered aircraft, registry code 8142508 - [Silver Bay Logging CH-54A](https://openairdocs.org/model/silver-bay-logging-ch-54a): 0 registered aircraft, registry code 8160000 --- 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.