WPR18LA044 · Piper PA 34-200T 220T
Angel Aviation Piper PA 34-200T 220T · Accident: loss of control on ground during landing
From Glendale Municipal Airport (GEU) to Glendale Municipal Airport (GEU)
Event
- NTSB case
- WPR18LA044
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Piper PA 34-200T 220T
- Aircraft type
- Piper PA-34
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N47536
- Operator
- Angel Aviation
- Onboard fatalities
- Unknown
- Route
- From Glendale Municipal Airport (GEU), Glendale, AZTo Glendale Municipal Airport (GEU), Glendale, AZ
- Aircraft age
- About 40 years (built 1977)
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Landing · flare/touchdown
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Loss of control on ground
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The flight instructor reported that, during touchdown, the left wing "dipped" and the instructor initiated an aborted landing. After determining that the airplane would not climb, the instructor reduced engine power and attempted to stop the airplane, which veered off the runway surface, impacted a sign, and came to rest in the dirt adjacent to the runway. The instructor later reported that the left main landing gear had "malfunctioned" upon touchdown. Examination of the accident site revealed that the airplane landed left of the runway centerline with all three landing gear extended; the first indication of the collapsed gear was visible in a dirt area on the left side of the runway behind a runway distance marker. Although examination of the left main landing gear revealed a small area of fatigue, the majority of the fracture surface exhibited signatures consistent with overstress failure; therefore, it is likely that the gear fractured due to overstress following the runway excursion and impact with a sign.
Probable cause
The pilot's failure to maintain directional control of the airplane during the landing roll. Contributing to the accident was the fatigue of the left main landing gear assembly.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR18LA044
- Event ID
- 20171206X00953
- Case number
- WPR18LA044
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 941111e95ad9fc787fb48ea686f07e97b48082f3f6edf5ea868379cc7faf5537; retrieved 2026-09-16T06:05:23.291Z.