ANC26LA044 · Sling Aircraft (PTY) Ltd SLING LSA
Pacific Flight Academy Sling Aircraft (PTY) Ltd SLING LSA · Accident: loss of engine power (partial) en route
From Daniel K. Inouye International Airport (HNL) to Kalaupapa Airport (LUP)
Event
- NTSB case
- ANC26LA044
- 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
- Ongoing
- 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
Sling Aircraft (PTY) Ltd SLING LSA
- Aircraft type
- Sling Aircraft (pty) SLING
- 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
- N83PF
- Operator
- Pacific Flight Academy
- Onboard fatalities
- Unknown
- Route
- From Daniel K. Inouye International Airport (HNL), Honolulu, HITo Kalaupapa Airport (LUP), Kalaupapa, HI
- Aircraft age
- About 2 years (built 2024)
- 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
- Loss of engine power (partial)
- 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
No findings designated as a cause are recorded in the NTSB data yet.
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
On May 25, 2026, about 1110 Hawaii-Aleutian Standard time, a Sling Aircraft LSA, N83PF, was substantially damaged when it was involved in an accident near Kalaupapa, Hawaii Airport (LUP). The two pilots onboard sustained minor injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The airplane was being operated by Pacific Fight Academy, a 14 CFR part 61 flight school based at Honolulu Airport (HNL), Honolulu, Hawaii. According to the private pilot, he and his pilot-rated passenger were on a cross-country flight to the Island of Molokai to build time. They flew along the coastline of Molokai and were approaching LUP, the engine began to run rough, white smoke entered the cockpit through the air vent and the engine appeared to be losing power. The pilot shut down the engine and maneuvered the airplane to line up with the runway. He felt they would not make the runway and initiated a right turn toward a nearby bay to avoid landing on the rocky coast. The airplane contacted the water and immediately became inverted; both pilots self-extricated. The airplane sustained substantial damage to the right wing, fuselage, and rudder. The accident airplane was equipped with a 100-horsepower Rotax, 912 iS Sport series engine. During the National Transportation Safety Board investigator-in-charge’s follow-up examination of the engine, the No. 2 cylinder exhaust valve stem was observed to be fractured from the valve spring retainer, the valve stem had fallen into the No. 2 combustion chamber, metal fragments were present in the valve covers on all cylinders.
Figure 1 Fractured valve stem The engine was retained by the NTSB for further examination.
Verbatim NTSB factual narrative from the NTSB dataset
Sources
NTSB record ANC26LA044
- Event ID
- 20260526203045
- Case number
- ANC26LA044
- 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, coordinates. 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: 723fc8a8e8803d3655457b14f3a29eceb461b4425cb5ceabb3bfa436db82c3f1; retrieved 2026-09-16T21:32:31.003Z.