# Incident 20231223022349I: Piper PA-23-250, Tamuning, GU, December 23, 2023

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 23, 2023, 10:30 local time
- Place: Tamuning, GU
- Airport: Antonio B. Won Pat Internation
- Damage: Minor damage
- Phase of flight: Landing: Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 13.4839° N, 144.7767° E: Placed by OpenAirDocs: center of Tamuning, GU, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=13.4839&lon=144.7767&mi=10
- Aircraft: N7436C, registered now (https://openairdocs.org/aircraft/N7436C) (OpenAirDocs)
- Registry model: Piper PA-23-250 (registry code 7102308, https://openairdocs.org/model/piper-pa-23-250) (OpenAirDocs)
- Registry engine: Lycoming IO-540 series (registry code 41530, https://openairdocs.org/engine/lycoming-io-540-series) (OpenAirDocs)
- Reported make and model: PIPER PA-23-250
- People aboard: 3
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 700 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20231223022349I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

PA-23-250 DURING DAY VMC FLIGHT PILOT IN COMMAND (PIC) NOTED FLAPS DID NOT GO DOWN DURING FLAP DRAG DEMONSTRATION IN FLIGHT. PIC ATTEMPTED TO LOWER LANDING GEAR TO TEST THE HYDRAULIC SYSTEM. LANDING GEAR FAILED TO EXTEND. PIC ANNOUNCED HYDRAULIC FAILURE. CREW USED HYDRAULIC HAND PUMP TO LOWER GEAR. HYDRAULIC PUMP LOWERED AND LOCKED BOTH MAIN LANDING GEAR WITH GREEN LIGHT INDICATION IN COCKPIT. NOSE GEAR PARTIALLY EXTENDED; NO GREEN LIGHT INDICATION IN COCKPIT. HAND PUMP LOST PRESSURE; NO CHANGE TO GEAR POSITION OR INDICATION. PIC ATTEMPTED FLIGHT MANEUVERS TO USE G-FORCE TO LOCK GEAR; NO CHANGE. CREW VERIFIED ZERO PRESSURE IN HAND PUMP. PIC ESTABLISHED LEVEL FLIGHT AT 7000 FEET AND ACTIVATED EMERGENCY C02 GEAR DEPLOYMENT. C02 EMERGENCY SYSTEM CAUSED NOSE GEAR LIGHT TO COME ON; BOTH MAIN GEAR LIGHTS WENT OUT. CREW REQUESTED VISUAL CONFIRMATION OF GEAR POSITION FROM GUAM CENTER TOWER. CREW PLANNED FOR NO-FLAP SOFT FIELD LANDING; BRIEFED GO-AROUND(GA) PROCEDURES. AIRCRAFT TOUCHED DOWN; CREW STATE THAT AIRCRAFT BEGAN TO LEAN TO THE RIGHT AND PIC CALLED GA. CREW NOTED NOSE GEAR LIGHT EXTINGUISHED, BOTH MAIN GEAR GREEN LIGHT ILLUMINATED AFTER ATTEMPTED LANDING. REQUESTED VISUAL CONFIRMATION FROM GUAM CENTER TOWER. CREW PLANNED FOR NO-FLAP SOFT FIELD LANDING. AFTER TOUCHDOWN NOSE GEAR COLLAPSED; MINOR DAMAGE TO 2 EACH PROPS, LANDING GEAR ASSY, AND FUSELAGE. NO INJURIES.

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. For accidents, the NTSB's own investigation is the fuller record.

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