# Rolls-Royce VIPER MK22-1

- Type: Engine model (FAA registry)
- Registry code: 54229
- Manufacturer (registry): ROLLS-ROYC
- Model: VIPER MK22-1
- Engine type: Turbo-fan
- Power: 2,500 lb thrust
- Installed in: 4 registered aircraft
- Page: https://openairdocs.org/engine/rolls-royce-viper-mk22-1

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (4)

- [N152TP](https://openairdocs.org/aircraft/N152TP): [National Test Pilot School](https://openairdocs.org/faa-owner/NATIONAL%20TEST%20PILOT%20SCHOOL), [Mojave, CA](https://openairdocs.org/faa-place/CA/Mojave), built 1967, S/N 481
- [N154TP](https://openairdocs.org/aircraft/N154TP): [National Test Pilot School](https://openairdocs.org/faa-owner/NATIONAL%20TEST%20PILOT%20SCHOOL), [Mojave, CA](https://openairdocs.org/faa-place/CA/Mojave), built 1967, S/N 497
- [N156TP](https://openairdocs.org/aircraft/N156TP): [National Test Pilot School](https://openairdocs.org/faa-owner/NATIONAL%20TEST%20PILOT%20SCHOOL), [Mojave, CA](https://openairdocs.org/faa-place/CA/Mojave), built 1967, S/N 468
- [N158TP](https://openairdocs.org/aircraft/N158TP): [National Test Pilot School](https://openairdocs.org/faa-owner/NATIONAL%20TEST%20PILOT%20SCHOOL), [Mojave, CA](https://openairdocs.org/faa-place/CA/Mojave), built 1967, S/N 471

## 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 WPR21LA123](https://openairdocs.org/ntsb/WPR21LA123), Mar 5, 2021: Aermacchi Impala MB-326M (N155TP), Edwards, CA, destroyed. Probable cause: The flight crew’s restricted rudder inputs while in an inverted spin that precluded spin recovery.

## FAA accident and incident reports (1)

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 20210305001749A](https://openairdocs.org/incident/20210305001749A), Mar 5, 2021: Aermacchi IMPALA MB-326M (N155TP), Edwards, CA, Destroyed. On March 5, 2021, at approximately 0930 PST, accident pilot and student (belgian air force, non FAA certificated) departed kmhv, mojave, California, for us…

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