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Aircraft record

N522FB1991 Mcdonnell Douglas Helicopter 500N

DeregisteredUnclaimedSource: FAA, updated Oct 17, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Jul 21, 2006.

Safety record in brief:No NTSB accidents or incidents since 19823 ADs may apply7 service difficulty reports

Registration
Deregistered
Last based in
Phoenix, AZ
owner city / state
Owners
1
since 1992
NTSB events
None
since 1982
ADs may apply
3
confirm with A&P
Service reports
7
since 1995

Registration

FAA Aircraft Registry · Oct 17, 2026
Last registered owner
City Of Phoenix Police Department
Owner type
Government
City, state
Phoenix, AZ
Certificate issued
Jan 31, 1992
Canceled
Jul 21, 2006
Airworthiness
Standard · Normal
Airworthiness date
Dec 10, 1991

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Mcdonnell Douglas Helicopter
Model
500N
Year
1991
Serial number
LN002
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
4
Engines
1
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
H3WE
Mode S code
A690DB

Engine

Make and model
Allison 250-C20 Ser
Type
Turbo-shaft
Power
420 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 1992 – 2006City Of Phoenix Police DepartmentPhoenix, AZ

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

Accident history for this model

ADs published since 1998 that may apply (3)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2006-16-04Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division…Sep 7, 2006Engine (250-C20 SER)
2006-13-06Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division…Jul 26, 2006Engine (250-C20 SER)Only with: Engines with gas producer rotor assembly tie bolt P/Ns A23008020, E23008020 (EXTEX), 23008020, 6843388, 6876991 (RRC), A23008020 (SAP), or 23008020P (Pacific Sky Supply) installed.
2005-10-13Rolls-Royce Corporation (Formerly Allison Engine Company) 250-B17B, -B17C, -B17D, -B17E…Jun 22, 2005Engine (250-C20 SER)Only with: Engines that do not have turbine energy absorbing ring RRC P/N 23035175, or an equivalent FAA-approved serviceable ring, installed.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (7)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Main rotor · mast · damagedOct 13, 2000

    FOUND PAINT SEALANT INSIDE MAIN ROTOR MAST TUBE BLISTERED AND FALLING INTO MAIN ROTOR TRANSMISSION GEARBOX. APPEARED THAT MAIN ROTOR TRANSMISSION OIL MOBILE SHC 626 IS NOT COMPATIBLE WITH SEALANT PAINT ON INSIDE OF MAIN ROTOR MAST.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Rotor flight controls · switch · failedApr 25, 1999

    PILOT TRIM SWITCH RUN-A-WAY AFT.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine fuel and control · governor · failedOct 20, 1997

    DURING FLIGHT, GOVERNOR LOCKED-UP INTERNALLY CAUSING ENGINE TO SPOOL DOWN TO GROUND IDLE. THIS CAUSED ACFT TO MAKE A PRECAUTIONARY LANDING AT NIGHT ON 10-20-97.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 7 reports
  • Main rotor drive · bearing · seal clip failedSep 25, 1997

    LOWER SEAL RETAINING CLIP FELL OUT DURING FLIGHT. FOUND DURING 100-HOUR INSPECTION.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · brace · looseApr 7, 1997

    UPON CHANGING FAN DRIVESHAFT, FOUND NOTAR DIAGONAL BRACE LOOSE. WORKING RIVETS BETWEEN FITTING 500N3130-3 AND TUBE 500N3122 AT STA 137.5.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Rotor flight controls · mount · crackedApr 3, 1997

    AFT TRANSMISSION MOUNT CRACKED FROM RIVET, OUTWARD THROUGH EXTRUSION WEB AT UPPER LEFT MOUNT, PN 500N3139, STA 137.50 BULKHEAD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Exhaust · exhaust · crackedApr 2, 1997

    LOWER END AFT OF RT STACK CRACKED APPROXIMATELY 2 INCHES ON BOTTOM STARTING AT END TRAVELING THROUGH REINFORCEMENT RIDGE THEN CURVING TOWARD OUTBOARD SIDE OF MAIN BODY OF STACK.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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