# Aero Union P3A - Type: Aircraft model (FAA registry) - Registry code: 5780800 - Manufacturer (registry): AERO UNION CORP - Model: P3A - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 4 · Turbo-prop - Seats: 2 - Weight class: 20,000 lb and over - Certification: Type certificated - Data sheet: [TCDS T00006LA](https://openairdocs.org/tcds/T00006LA) (OpenAirDocs) - Holder: United Aeronautical Corporation - Registered aircraft: 3 - Page: https://openairdocs.org/model/aero-union-p3a Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [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 ## Registered aircraft (3) - [N900AU](https://openairdocs.org/aircraft/N900AU): [United Aeronautical Corp](https://openairdocs.org/faa-owner/UNITED%20AERONAUTICAL%20CORP), [North Hollywood, CA](https://openairdocs.org/faa-place/CA/North%20Hollywood), built 2010, S/N 151391 - [N923AU](https://openairdocs.org/aircraft/N923AU): [United Aeronautical Corp](https://openairdocs.org/faa-owner/UNITED%20AERONAUTICAL%20CORP), [North Hollywood, CA](https://openairdocs.org/faa-place/CA/North%20Hollywood), S/N 151372 - [N925AU](https://openairdocs.org/aircraft/N925AU): [Mhd Rockland Services Inc](https://openairdocs.org/faa-owner/MHD%20ROCKLAND%20SERVICES%20INC), [Starke, FL](https://openairdocs.org/faa-place/FL/Starke), built 1964, S/N 151361 ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (28) As reported by operators and repair stations, by the model named in the report. - [SDR 2021FA0000011](https://openairdocs.org/sdr/2021FA0000011), Sep 25, 2020: CONTROL PANEL. INFLT SEPARATION. DURING OPERATION AN AIR CONTROL PANEL FAILED AND SEPARATED FROM THE AIRCRAFT. THE AIR CONTROL PANEL FAILED BEHIND THE NUMBER 4 NACELLE. DUE TO THE FAILURE OF TH - [SDR AUCR20110215004](https://openairdocs.org/sdr/AUCR20110215004), Feb 15, 2011: FITTING. CRACKED. DURING ANNUAL INSPECTION, A DETAILED ULTRA-SONIC INSPECTION OF THE FUSELAGE WING ATTACH RING FITTINGS WERE INITIATED BY OUR BY OUR INTERNAL SB. A FATIGUE CRACK - [SDR AUCR20110215](https://openairdocs.org/sdr/AUCR20110215), Feb 15, 2011: ATTACH FITTING. CRACKED. DURING ANNUAL INSPECTION, A DETAILED ULTRA-SONIC INSPECTION OF THE FUSELAGE WING ATTACH RING FITTINGS WERE INITIATED BY AN INTERNAL SB. A FATIGUE CRACK WAS APPR - [SDR AUCR20110215003](https://openairdocs.org/sdr/AUCR20110215003), Feb 15, 2011: ATTACH FITTING. CRACKED. DURING ANNUAL INSPECTION, A DETAILED ULTRA-SONIC INSPECTION OF THE FUSELAGE WING ATTACH RING FITTINGS WERE INITIATED BY AN INTERNAL SB. FATIGUE CRACKS WERE APPR - [SDR AUCR20110215002](https://openairdocs.org/sdr/AUCR20110215002), Feb 15, 2011: FITTING. CRACKED. DURING ANNUAL INSP, A DETAILED ULTRA-SONIC INSP OF THE FUSELAGE WING ATTACH RING FITTINGS WERE INITIATED BY AN INTERNAL SB. A FATIGUE CRACK WAS APPRECIATED IN T - [SDR AUCR20110215001](https://openairdocs.org/sdr/AUCR20110215001), Feb 15, 2011: FLANGE. CRACKED. DURING ANNUAL INSPECTION A DETAILED ULTRA-SONIC INSPECTION OF THE FUSELAGE WING ATTACH RING FITTINGS WERE INITIATED BY AN INTERNAL SB. A FATIGUE CRACK WAS APPRE - [SDR 2010FA0000923](https://openairdocs.org/sdr/2010FA0000923), Aug 31, 2010: WHEEL HALF. CRACKED. WHILE TOWING ACFT CREW NOTED EXCESSIVE NOISE FROM NR2 MAIN WHEEL ASSY. FURTHER INVESTIGATION REVEALED THE INBD HALF OF THE NR 2 WHEEL WAS FRACTURED, OUT FROM TH - [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 2009FA0000238](https://openairdocs.org/sdr/2009FA0000238), Mar 20, 2009: FITTING. CRACKED. DURING PHASE DEPOT INSP THE LWR FWD LT RING FITTING, PN 903220-1 WAS FOUND FRACTURED THRU THE HORIZONTAL BOTTOM FLANGE AT THE FILLET NUT PLATE HOLE AND HAD PROP - [SDR 2008FA0000724](https://openairdocs.org/sdr/2008FA0000724), Oct 29, 2008: SPAR CAP. CRACKED. DURING FURTHER EVALUATION FOLLOWING PREVIOUSLY REPORTED DAMAGE A TERTIARY FRACTURE WAS FOUND ON THE FORWARD SPAR CAP, HORIZONTAL FLANGE, WING STA 143.5. THE FRA - [SDR 2008FA0000723](https://openairdocs.org/sdr/2008FA0000723), Oct 29, 2008: SPAR CAP. CRACKED. DURING FURTHER EVALUATION FOLLOWING PREVIOUSLY REPORTED DAMAGE A SECOND CRACK WAS FOUND ON THE FORWARD LOWER CAP AT BUTTLINE 56R. THE CRACK WAS VISUALLY IDENTIF - [SDR 2008FA0000704](https://openairdocs.org/sdr/2008FA0000704), Oct 24, 2008: SPAR CAP. FRACTURED. DURING INSPECTION TO DETERMINE THE SOURCE OF A FUEL LEAK A FRACTURE WAS FOUND IN THE LOWER FORWARD RIGHT SPAR CAP AT WING STA 75 EMANATING FROM NUT PLATE FASTEN - [SDR AUCR200600006](https://openairdocs.org/sdr/AUCR200600006), May 31, 2006: SPAR CAP. CRACKED. DURING SCHEDULED INSPECTION FOUND CORROSION INDUCED CRACK IN UPPER AFT SPAR CAP EXTENDING OUTBOARD FROM PREVIOUS REPAIR IN THE AREA OF FLAP TRACK 5, WS 346. DUR - [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 AUCR200600002](https://openairdocs.org/sdr/AUCR200600002), Mar 21, 2006: SPAR CAP. CORRODED. UPPER REAR SPAR CAP STRESS CORROSION CRACKED IN AFT RADIUS FORWARD OF NR 4 FLAP HANGER. DAMAGE CENTERED AT WS275. DAMAGE WAS INITIALLY DETECTED VISUALLY DURING - [SDR AUCR200600001](https://openairdocs.org/sdr/AUCR200600001), Feb 1, 2006: PANEL. CRACKED. LT WING, STA. 82, 2.9 IN. FRACTURE IN NR 7 PLANK FORWARD TANG. FRACTURE WAS LOCATED BY ULTRASONIC INSPECTION DURING EVALUATION OF FUEL STAIN AT ANNUAL INSPECTIO - [SDR AUCR200500005](https://openairdocs.org/sdr/AUCR200500005), Dec 2, 2005: SKIN PANEL. CORRODED. RT WING LOWER SKIN PANEL NR 7 AT BUTT LINE 65 INTERNAL INTERGRANULAR CORROSION. THE DEFECTIVE PANEL WAS FIRST DETECTED BY A FUEL LEAK AT BUTT LINE 65. FURTHER I - [SDR AUCR200500004](https://openairdocs.org/sdr/AUCR200500004), Dec 1, 2005: SPAR CAP. CORRODED. RT WING UPPER FORWARD SPAR CAP W.S.73 (PREVIOUS PROCESSING BY PARTY UNKNOWN) OF THE FORWARD FLANGE HAS EXCEEDED MAXIMUM NEGLIGIBLE LIMITS FOR DAMAGE LOCATION. D - [SDR AUCR200500003](https://openairdocs.org/sdr/AUCR200500003), Dec 1, 2005: SPAR CAP. CORRODED. RT WING REAR SPAR UPPER CAP WS178 AT NACELLE AFT ATTACH PLATE. DISSIMILAR METAL CORROSION ATTACKING UPPER CROWN AND AND VETICAL LEG OF THE SPAR CAP. CORROSION W - [SDR AUCR200500002](https://openairdocs.org/sdr/AUCR200500002), Dec 1, 2005: SPAR CAP. CORRODED. LT WING UPPER REAR SPAR CAP WS178, AT NACELLE AFT ATTACH PLATE. DISSIMILAR METAL CORROSION ATTACK UPPER CROWN AND VERTICAL LEG. CORROSION WAS VISUALLY DETECTED - [SDR AUCR200500001](https://openairdocs.org/sdr/AUCR200500001), Dec 1, 2005: PANEL. CRACKED. LOCATED LOWER WING PLANK RISER FRACTURE 7 INCHES IN LENGTH LT WING STA. 167. FRACTURE EMANATED ALONG BASE OF RISER EXTENDING IB AND OB SPANWISE. FRACTURE WAS VI - [SDR AUC2003F00001](https://openairdocs.org/sdr/AUC2003F00001), Jul 30, 2003: TIRE. FAILED. WHEEL ASSEMBLY WITH RECAPPED TIRES INSTALLED ON AIRCRAFT. THESE TIRES INSTALLED FOR A TOTAL OF 10 DAY AND OPERATED FOR A TOTAL OF 28 FLIGHT HOURS. UPON TAKE OFF - [SDR AUC2003F00000](https://openairdocs.org/sdr/AUC2003F00000), Jul 30, 2003: TIRE. FAILED. WHEEL ASSEMBLY WITH RECAPPED TIRES INSTALLED ON AIRCRAFT. THESE TIRES INSTALLED FOR A TOTAL OF 7 DAYS AND OPERATED FOR A TOTAL OF 14 FLIGHT HOURS. UPON TAKEOFF, - [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 - [SDR 20010312CW001](https://openairdocs.org/sdr/20010312CW001), Feb 12, 2001: ELT. UNSTABLE. ELT SELF ACTIVATED. THIS UNIT WAS SENT TO THE FACTORY FOR WARRANTY REPAIR FOR THE SAME DEFECT 2 MOS EARLIER. AIRCRAFT WAS SITTING ON RAMP WITH NO POWER. ELT WEN - [SDR 20001207SH018](https://openairdocs.org/sdr/20001207SH018), Nov 16, 2000: G SWITCH. WILL NOT TEST. DURING ANNUAL TEST OF ELT PER FAR 91.207(S), FOUND G-SWITCH WOULD NOT ACTIVATE. (X) ## STCs that may be installed (OpenAirDocs) (4) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [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 ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Lockheed P-3A](https://openairdocs.org/model/lockheed-p-3a): 3 registered aircraft, registry code 5260103 --- 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.