WPR23LA232 · Piper PA-28-140
Piper PA-28-140 · Accident: system/component malfunction/failure (non-power) en route
From U42 · South Valley, UT to an unrecorded destination
Event
- NTSB case
- WPR23LA232
- 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
- Event fatalities
- Unknown
- 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-28-140
- Aircraft type
- Piper PA-28
- 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
- N3508K
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From U42 · South Valley, UTTo not recorded
- Aircraft age
- About 56 years (built 1967)
- 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
- En route · cruise
- 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
- System/component malfunction/failure (non-power)
- 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 systems
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot was on a cross-country flight when the engine lost power during cruise flight. He said the engine rpm initially decreased from 2,400 rpm to 950 rpm, before decreasing until the engine lost all power. The pilot stated that he did not hear any unusual noises from the engine at the time it lost power, but he observed the fuel flow initially increase from 7.2 gallons per hour (gph) to 9 gph, before continuing to increase to 15 gph. He performed the emergency checklist for loss of engine power inflight but was unable to restart the engine. The pilot had the left fuel tank selected when the loss of power occurred. The pilot initiated a forced landing to an area of flat terrain. During the landing, all three landing gear collapsed, which resulted in substantial damage to the right wing and fuselage. The engine and fuel system were examined and the fuel line fitting connecting the fuel second flow sensor to the fuel line that ran to the carburetor was found broken. About 15 gallons of fuel remained in the left fuel tank and the right fuel tank was breached during the impact. No additional anomalies were noted during the examination of the engine and airframe. The pilot’s observations of the fuel flow readings increasing as the engine lost power and his inability to restart the engine are consistent with the fuel line fitting breaking inflight, resulting in a total loss of engine power due to fuel starvation. Complete maintenance records were not available to determine when the fuel flow sensors had been installed or if any maintenance had been performed on the suspect fuel fitting after installation.
Probable cause
A broken fuel line fitting that resulted in a total loss of engine power due to fuel starvation.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR23LA232
- Event ID
- 20230620192406
- Case number
- WPR23LA232
- 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: local date, investigation status, cause areas. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2023-06-17.
- API snapshot SHA-256: 91c7e4086725c9a6263f2afbea63b19185dbc25c91d4a1515a5bf2d846cced35; retrieved 2026-09-16T17:44:34.763Z.