# Rolls-Royce VIPER MK522 - Type: Engine model (FAA registry) - Registry code: 54552 - Manufacturer (registry): ROLLS-ROYC - Model: VIPER MK522 - Engine type: Turbo-jet - Power: 333 hp - Data sheet: [TCDS E3EU](https://openairdocs.org/tcds/E3EU) (OpenAirDocs) - Holder: Rolls-Royce Deutschland Ltd & Co KG - Installed in: 2 registered aircraft - Page: https://openairdocs.org/engine/rolls-royce-viper-mk522 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. - [AD 2018-17-08](https://openairdocs.org/ad/2018-17-08): Compressor Section · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521, Viper Mk. 522 and Viper Mk. 601-22. Effective Sep 25, 2018 - [AD 98-26-07](https://openairdocs.org/ad/98-26-07): Fuel Pumps · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521 and Viper Mk. 522. Effective Feb 16, 1999 - [AD 98-25-14](https://openairdocs.org/ad/98-25-14): Barometric Flow Control Unit · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521, Viper Mk. 522, Viper Mk. 526 and 1 more. Effective Feb 12, 1999 - [AD 92-10-07](https://openairdocs.org/ad/92-10-07): High Pressure Compressor (HPC) Rotor Disks · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521, Viper Mk. 522 and Viper Mk. 601-22. Effective Sep 21, 1992 - [AD 77-13-20](https://openairdocs.org/ad/77-13-20): Fuel Shutoff Valve · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 522 and Viper Mk. 601-22. Effective Aug 1, 1977 Historical (superseded or no longer in force): - [AD 2016-03-03](https://openairdocs.org/ad/2016-03-03) (historical): Life-limited parts · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521, Viper Mk. 522 and Viper Mk. 601-22. Effective Apr 14, 2016 ## Registered aircraft (2) - [N230TS](https://openairdocs.org/aircraft/N230TS): [Dodson International Parts Inc](https://openairdocs.org/faa-owner/DODSON%20INTERNATIONAL%20PARTS%20INC), [Rantoul, KS](https://openairdocs.org/faa-place/KS/Rantoul), built 1968, S/N NA700 - [N669M](https://openairdocs.org/aircraft/N669M): built 1967, S/N 23172 ## NTSB investigations (4) 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 WPR18LA094](https://openairdocs.org/ntsb/WPR18LA094), Feb 21, 2018: Soko Galeb G 2 (N90SR), Elko, NV, substantial damage. Probable cause: An improperly installed brake cylinder, which resulted in insufficient hydraulic pressure being provided to three of the brake cylinders and the left brake being inoperable during landing. - [NTSB LAX91FA132](https://openairdocs.org/ntsb/LAX91FA132), Mar 16, 1991: Hawker Siddeley DH.125-1A/522 (N831LC), San Diego, CA, destroyed, 10 fatal. Probable cause: IMPROPER PLANNING/DECISION BY THE PILOT, THE PILOT'S FAILURE TO MAINTAIN PROPER ALTITUDE AND CLEARANCE OVER MOUNTAINOUS TERRAIN, AND THE COPILOT'S FAILURE TO ADEQUATELY MONITOR THE PROGRESS OF THE… - [NTSB ATL88MA053](https://openairdocs.org/ntsb/ATL88MA053), Dec 5, 1987: Hawker Siddeley HS-125-400A (N400PH), Lexington, KY, destroyed, 2 fatal - [NTSB CHI86FA191](https://openairdocs.org/ntsb/CHI86FA191), Aug 2, 1986: Hawker Siddeley DH-125-1A (N50HH), Bedford, IN, destroyed, 2 fatal ## FAA accident and incident reports (9) 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 20180221002939A](https://openairdocs.org/incident/20180221002939A), Feb 21, 2018: Soko GALEB G-2 (N90SR), Elko, NV, Substantial damage. The pilot departed reno/tahoe/stead (rts) and flew VFR to Elko Regional Airport (eko). Upon landing rollout, the pilot noticed the left brake was inoperative.… - [Incident 20170315006259I](https://openairdocs.org/incident/20170315006259I), Mar 15, 2017: Hawker Siddeley DH.125-400A (N602JR), Miami, FL, Minor damage. Upon reaching cruise altitude, crew noticed RH windshield starting to delaminate. Requested return to ktmb. While returning outer pane cracked. Aircraft landed… - [Incident 20140506008939I](https://openairdocs.org/incident/20140506008939I), May 6, 2014: Hawker Siddeley BH.125-400A (N800NP), Fort Lauderdale, FL, No damage. On may 6, 2014, approximately 1330 hours a Hawker Siddeley, model number bh.125-400A, registration number N800NP, serial number 758, was preparing for… - [Incident 19981220042049I](https://openairdocs.org/incident/19981220042049I), Dec 20, 1998: Hwksly DH125* (N800GE), Kansas City, MO. (-23) In cruise flight enroute from chicago, IL (dpa) to santa fe, NM (saf) #1 engine began vibrating. Pilot made a precautionary engine shut-down and diverted… - [Incident 19930413012149I](https://openairdocs.org/incident/19930413012149I), Apr 13, 1993: Fokker F27MK500 (N727FE), Indianapolis, IN. Pilot unable to maintain directional control on rollout. Veered off runway. Nosewheel steering control valve faulty - [Incident 19921111052149I](https://openairdocs.org/incident/19921111052149I), Nov 11, 1992: Fokker F27MK500 (N728FE), Cleveland, OH. Right engine quit in flight. Attempted to restart. Found both boost pump switches were off. - [Accident 19910316005479A](https://openairdocs.org/incident/19910316005479A), Mar 16, 1991: Hwksly DH1251A522 (N831LC), San Diego, CA, Destroyed, 10 fatal. Collided with mountain slope 172 ft from top,VFR departure planned,IFR after takeoff,normal takeoff observed. - [Accident 19871205082889A](https://openairdocs.org/incident/19871205082889A), Dec 5, 1987: Hwksly DH125400A (N400PH), Lexington, KY, Destroyed, 2 fatal. Right engine fire light on. Went out when shut down. Tailcone crack activated fire warning. Flaps were up on impact - [Accident 19860802036799A](https://openairdocs.org/incident/19860802036799A), Aug 2, 1986: Hwksly DH1251A (N50HH), Bedford, IN, Destroyed. Go around attempted after a long touchdown with a strong tailwind. Struck rough terrain and trees off short runway. --- 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.