# Vertol 42A

- Type: Aircraft model (FAA registry)
- Registry code: 9420102
- Manufacturer (registry): VERTOL
- Model: 42A
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Reciprocating
- Seats: 21
- Weight class: 12,500 to 19,999 lb
- Cruise speed: 76 mph
- Certification: Type certificated
- Data sheet: [TCDS 1H12](https://openairdocs.org/tcds/1H12) (OpenAirDocs)
- Holder: Boeing Defense & Space Group
- Registered aircraft: 0
- Page: https://openairdocs.org/model/vertol-42a

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 68-06-01](https://openairdocs.org/ad/68-06-01): Transmission Drive Shaft · Boeing Defense & Space Group 42A, 42B, 44A and 5 more. Effective Mar 21, 1968
- [AD 64-27-04](https://openairdocs.org/ad/64-27-04): Wood Rotor Blade Root Socket · Boeing Defense & Space Group 42A, 42B, H21A and 3 more. Effective Dec 10, 1964
- [AD 64-19-06](https://openairdocs.org/ad/64-19-06): Spiral Bevel Pinion Gears · Boeing Defense & Space Group 42A, 42B, 44A and 4 more. Effective Aug 7, 1964
- [AD 60-23-05](https://openairdocs.org/ad/60-23-05): Bellcrank Assembly Retirement · Boeing Defense & Space Group 42A, 42B, 44A and 1 more. Effective Nov 8, 1960
- [AD 58-20-04](https://openairdocs.org/ad/58-20-04): Clutch Coupling Replacement · Boeing Defense & Space Group 42A, 42B, 44A and 1 more

## Registered aircraft

None registered with this model now.

## NTSB investigations (1)

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 OAK75FVG46](https://openairdocs.org/ntsb/OAK75FVG46), Mar 4, 1975: Vertol 42A (N10109), Chico, CA, substantial damage

## 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.

- [Incident 19890905047509I](https://openairdocs.org/incident/19890905047509I), Sep 5, 1989: Boeing 42A (N70881), Albuquerque, NM, Minor damage. Internal engine failure. Made emergency autorotation to highway without incident.
- [Accident 19750304003279A](https://openairdocs.org/incident/19750304003279A), Mar 4, 1975: Boeing 42A (N10109), Chico, CA, Substantial damage. Chem spray vapors entered carb inlet duct. Spraying almonds.

## STCs that may be installed (OpenAirDocs) (5)

Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC
- [STC SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Gauthier Guy 42A](https://openairdocs.org/model/gauthier-guy-42a): 1 registered aircraft, registry code 05621SQ
- [Arbc Inc DBA Lindstrand 42A](https://openairdocs.org/model/arbc-inc-dba-lindstrand-42a): 1 registered aircraft, registry code 5190000

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