NYC87IA258 · Beech 99
Bar Harbor Airlines Beech 99 · Incident en route
From Auburn Lewiston Municipal Airport (LEW) to Boston Logan International Airport (BOS)
Event
- NTSB case
- NYC87IA258
- 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
- Incident
- 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
- 0
- 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
Beech 99
- Aircraft type
- Beechcraft 99
- 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
- N204BH
- Operator
- Bar Harbor Airlines
- Onboard fatalities
- Unknown
- Route
- From Auburn Lewiston Municipal Airport (LEW), Auburn, METo Boston Logan International Airport (BOS), Boston, MA
- Aircraft age
- Not recorded
- 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
- First occurrenceThe 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
- Miscellaneous/other
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- None
Cause areas
- Pilot in command › Miscellaneous equipment, inadvertent use
Approximate · Estimated position: the centre of Portland, ME, the place the record names. Not the accident site.
NTSB narrative
THE ACFT WAS CRUISING AT 2500 FT WITH NO PASSENGERS ON BOARD. THE CO-PILOT WENT INTO THE CABIN AND NOTICED A LOUD HISSING NOISE AROUND THE MAIN CABIN DOOR. HE CHECKED THE HANDLE AND LOCKING PINS AND NOTICED THE DOOR WAS LOCKED. HE TOLD THE CAPTAIN WHO DIRECTED HIM TO TAKE CONTROL OF THE AIRCRAFT AND THE CAPTAIN WENT BACK INTO THE CABIN TO CHECK THE DOOR. THE CAPTAIN SAID HE MAY HAVE BUMPED THE DOOR AND IT FLEW OPEN. HE WAS TANGLED UP IN THE DOOR CABLES AND STAYED WITH THE AIRCRAFT. HE RECEIVED MINOR INJURIES. THE CO-PILOT MADE AN UNEVENTFUL LANDING AFTER DECLARING AN EMERGENCY. THE DOOR WAS EXAMINED AND NO PROBLEM WAS FOUND WITH THE DOOR. THE AIRCRAFT WAS RETURNED TO SERVICE WITHOUT REPAIR. BEECH AIRCRAFT COMPANY SAID THERE WOULD BE A 127 LB FORCE PULLING THE DOOR OUTWARD AT 200 KTAS AND 2500 FT. THE FLIGHT CREW HAD REPORTED THEY WERE IN NORMAL CRUISE WHEN THE DOOR OPENED.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record NYC87IA258
- Event ID
- 20001213X32188
- Case number
- NYC87IA258
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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, damage. 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: 1fc954d6252b02befc985d6d218b32b896e7bf5d902650ec933ac43832774574; retrieved 2026-09-22T00:45:15.333Z.