# N925AU: 1964 Aero Union P3A

- Status: Valid registration
- Airframe: [Aero Union P3A](https://openairdocs.org/model/aero-union-p3a) (registry code 5780800, 2 seats)
- Engine: [Allison T-56-A-10W](https://openairdocs.org/engine/allison-t-56-a-10w) (registry code 03032)
- Data sheets: [TCDS T00006LA](https://openairdocs.org/tcds/T00006LA) (United Aeronautical Corporation) (OpenAirDocs)
- Serial number: 151361
- Year built: 1964
- Type: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Restricted, forest
- Airworthiness date: April 20, 2011
- Certificate issued: December 4, 2023
- Expires: December 31, 2030
- Mode S code: ACD0D0
- Registered owner: [Mhd Rockland Services Inc](https://openairdocs.org/faa-owner/MHD%20ROCKLAND%20SERVICES%20INC)
- Location: [Starke, FL](https://openairdocs.org/faa-place/FL/Starke)
- Owner type: Corporation
- Owner's area on the map: 29.9331° N, 82.1134° W: Placed by OpenAirDocs at the center of ZIP code 32091, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=925AU
- Page: https://openairdocs.org/aircraft/N925AU

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 2 in force

### Matched by airframe (Aero Union P3A)

- [AD 2018-11-02](https://openairdocs.org/ad/2018-11-02): Flight Controls · Lockheed Martin 188A, 188C, P3A and 2 more. Effective May 23, 2018
- [AD 2014-11-06](https://openairdocs.org/ad/2014-11-06): Stabilizers, Wings · Aero Union P3A and P-3A. Effective Jul 8, 2014

### Matched by engine (Allison T-56-A-10W)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N925AU.

## FAA accident and incident reports

None matched to N925AU.

## Service difficulty reports (5)

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

- [SDR 2009FA0000757](https://openairdocs.org/sdr/2009FA0000757), Sep 3, 2009: SKIN. CRACKED. DISCREPANCY IDENTIFIED BY SLIGHT FUEL WEEP ON PREFLIGHT, LEFT WING STATION 90.5. FURTHER EVALUATION WITH ULTRASONIC NDT DISCLOSED A CRACK ON THE LOWER WING PANE
- [SDR 200600005](https://openairdocs.org/sdr/200600005), Apr 27, 2006: PANEL. CRACKED. NR 2 FUEL CELL LOWER WING SKIN, PLANK NR 2 CRACKED RISER. NO SRM STANDARD REPAIR FOR THIS DAMAGE. REPAIR WILL BE ACCOMPLISHED IAW EO 462557001.
- [SDR AUCR200600004](https://openairdocs.org/sdr/AUCR200600004), Apr 27, 2006: SKIN PANEL. DAMAGED. BOTTOM LT WING WS68.5, 4 FUEL BOOST PUMP SCREEN ATTACHING HOLES ELONGATED IN NR 17 AND NR 18 RISER.
- [SDR AUCR200600003](https://openairdocs.org/sdr/AUCR200600003), Apr 27, 2006: PANEL. CRACKED. CRACKED RISER, NR 4 FUEL TANK LOWER PLANK NR 4 AT NR 27 RISER WS397R.
- [SDR 2003FA0000529](https://openairdocs.org/sdr/2003FA0000529), Apr 14, 2003: SKIN. CRACKED. DURING ANNUAL (SPECIAL) INSPECTION CRACKS IN THE WING CENTER BOX PLANK NR 1 AND NR 3 WERE FOUND EMITTING FROM THE INTERNAL WEEP HOLES LOCATED NTHE INTERNAL PLAN

## STCs that may be installed (OpenAirDocs) (4)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Aero Union P3A)

- [STC ST04186AT](https://openairdocs.org/stc/ST04186AT): Incorporation of P3A Airworthiness Limitation Section for aircraft operated in Restricted Category for the special mission of aerial dispensing of liquids. Avenger Aerospace Solutions Inc
- [STC ST00788LA](https://openairdocs.org/stc/ST00788LA): Installation of a Champion or Unison engine ignition system. United Aeronautical Corporation
- [STC ST00792LA](https://openairdocs.org/stc/ST00792LA): Installation of Retardant Tanks for the special purpose of Forest and Wildlife Conservation. United Aeronautical Corporation
- [STC ST03718AT](https://openairdocs.org/stc/ST03718AT): Incorporation of P3A Airworthiness Limitation Section for aircraft operated in Restricted Category for the special mission of aerial dispensing of liquids in accordance with Avenger Aircraft and Services Report No. AAS-MDL-09-002, Revision NC dated April 30, 2009, or later FAA approved revision. Avenger Aircraft and Services

## Related

- Other Aero Union P3A aircraft: https://openairdocs.org/model/aero-union-p3a/aircraft.md
- The Allison T-56-A-10W engine: https://openairdocs.org/engine/allison-t-56-a-10w.md

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