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Atlas / NTSB / DEN86LA228

NTSB CAROL · Event

Event DEN86LA228

1986-08-08 BILLINGS, Montana, United States Airport · BIL None 1 aircraft Status: Completed

Registry · N21QQ

FAA Aircraft Registry record.

Make / Model

SHILLING E E Q-2

Year of manufacture

1983 · 3 years old at event

Engine

REVMASTER 2100 (65 hp)

Seats / Engines

1 seats · 1 engine

Last airworthiness date

19830920

ADS-B equipped

Yes — Mode-S A1B896

Registrant of record

MOORE MICHAEL R

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Factual narrative

PLT STATED AFTER ACCIDENT THAT HE HAD A MINOR ENG PROBLEM PRIOR TO DEPARTURE FROM BIG TIMBER. HE STATED THAT THE PROBLEM WAS CORRECTED AND THE FLIGHT COMMENCED TO BILLINGS. WHILE ON FINAL APPROACH TO RWY 04 AT BILLINGS THE PLT EXPERIENCED A PARTIAL LOSS OF PWR. HE WAS ABLE TO LAND ON THE RWY BUT BOUNCED THE ACFT SEVERAL TIMES ON TOUCHDOWN. THE PLT WAS UNABLE TO RECOVER AND THE ACFT DEPARTED THE SIDE OF THE RWY. THE DENSITY ALT WAS CALCULATED TO BE 6,344 FT. NO REASON FOR THE PARTIAL LOSS OF PWR COULD BE DETERMINED. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1986_DEN86LA228.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.