# N521AL: 1981 Sikorsky S-76A, registration cancelled 2005-08-09

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 9, 2005
- Exported to: Turkmenistan
- Status when cancelled: Triennial form not returned
- Airframe: [Sikorsky S-76A](https://openairdocs.org/model/sikorsky-s-76a) (registry code 8143006)
- Engine: [Turbomeca ARRIEL-1SER](https://openairdocs.org/engine/turbomeca-arriel-1ser) (registry code 60030)
- Data sheets: [TCDS H1NE](https://openairdocs.org/tcds/H1NE) (OpenAirDocs)
- Serial number: 760132
- Year built: 1981
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, transport
- Airworthiness date: October 13, 2000
- Certificate issued: August 15, 2000
- Last registry action: March 8, 2005
- Mode S code: A68CB0
- Owner when cancelled: [Air Logistics LLC](https://openairdocs.org/faa-owner/AIR%20LOGISTICS%20LLC)
- Location: [New Iberia, LA](https://openairdocs.org/faa-place/LA/New%20Iberia)
- Owner type: Corporation
- Owner's area on the map: 29.9367° N, 91.8653° W: Placed by OpenAirDocs at the center of ZIP code 70560, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N521AL
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=521AL
- Page: https://openairdocs.org/deregistered/N521AL-2005-08-09

From the FAA registry file of October 31, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Sikorsky S-76A: https://openairdocs.org/model/sikorsky-s-76a.md

## Service difficulty reports (6)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR ALG2005F00034](https://openairdocs.org/sdr/ALG2005F00034), Jun 4, 2005: AMPLIFIER. UNSERVICEABLE. BEFORE ENGINE START CHECK OF THE FIRE DETECTION SYSTEM, TEST HAD NO TONE. MAINTENANCE REMOVED FIRE CONTROL AMPLIFIER SN 11595 AND INSTALLED SERVICEABLE CONTROL 
- [SDR 2004F00380](https://openairdocs.org/sdr/2004F00380), Jul 21, 2004: BELLOWS. CONTAMINATED. ON TAKEOFF, THE NR 1 ENGINE STARTED TO SURGE. MAINTENANCE REMOVED FUEL CONTROL, FOUND WATER IN THE P1 BELLOWS REMOVED WATER AND REINSTALLED FUEL CONTROL, OPS CH
- [SDR ALG2003F00023](https://openairdocs.org/sdr/ALG2003F00023), Jan 18, 2003: SENSOR. MALFUNCTIONED. DURING TAKE OFF, TWO MINUTES AFTER TAKEOFF FROM BASE, NR 1 ENGINE OVERSPEED CAUTION LIGHT FLICKERED REPEATEDLY (BRIGHT NOT DIM). AIRCRAFT WAS RETURNED TO BASE. 
- [SDR ALG2003F00024](https://openairdocs.org/sdr/ALG2003F00024), Jan 17, 2003: SENSOR. FAILED. DURING GROUND RUN, WITH NR 1 ENGINE RUNNING AT GROUND IDLE (70 PERCENT NR1) AND ROTOR BRAKE ENGAGED, THE ENGINE SHUT ITSELF OFF AFTER RUNNING ABOUT 3-5 MINUTES.
- [SDR ALG2003F00036](https://openairdocs.org/sdr/ALG2003F00036), Oct 27, 2002: SENSOR. INOPERATIVE. ON TAKEOFF, NR 2 ENGINE DROPPED OFF LINE AND WOULD NOT RESTART. THE MECHANIC TROUBLESHOT AND FOUND NR 2 OVERSPEED SENSOR NOT OPERATIONAL.
- [SDR 20010420CW016](https://openairdocs.org/sdr/20010420CW016), Mar 1, 2001: QUILL. DAMAGED. DURING PHASE INSPECTION, FOUR LARGE CHIPS WERE FOUND ON RIGHT HAND CHIP PLUG AND ONE LARGE CHIP ON THE LEFT HAND CHIP PLUG. THE BLOWER ASSEMBLY QUILL WAS PULLED

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