Cascade Airways Embraer EMB-11OP1 incident
Embraer EMB-11OP1 · Incident during takeoff
From Boise Air Terminal/Gowen Field (BOI) to Lewiston Nez Perce County Airport (LWS)
Event
- NTSB case
- SEA82IA029
- 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
- Charter & commuter
- 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
Embraer EMB-11OP1
- Aircraft type
- Embraer EMB-11
- 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
- N101RA
- Operator
- Cascade Airways
- Onboard fatalities
- Unknown
- Route
- From Boise Air Terminal/Gowen Field (BOI), Boise, IDTo Lewiston Nez Perce County Airport (LWS), Lewiston, ID
- 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 135: Air Taxi & Commuter
- 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
- Takeoff · roll/run
- 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
- Minor
Cause areas
- Company maintenance personnel › Maintenance, inspection, inadequate
- Pilot in command › Aircraft preflight, inadequate
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THIS AIRCRAFT, WHICH WAS DEPARTING ON A SCHEDULED FLIGHT TO LEWISTON, ID., WAS JUST ACCELERATED TO ROTATION SPEED WHEN THE CREW HEARD ONE OF THE PASSENGERS SCREAM. THE TAKEOFF WA SUCCESSFULY ABORTED AND THE AIRCRAFT WAS RETURNED TO THE GATE. INVESTIGATION REVEALED THAT THE RIGHT OVERWING EMERGENCY EXIT DOOR WAS MISSING. THE DOOR WAS LOCATED ABOUT 3000' FROM THE DEPARTURE END OF RUNWAY 10L. ACCORDING TO THE PASSENGER SEATED ADJACENT TO THE EXIT, SHE NOTED WHEN SHE BOARDED, THAT THE PLASTIC SAFETY COVER WAS BROKEN AND THE T HANDLE ACTIVATION MECHANISM WAS SLIGHTLY AJAR. SHE ALSO FELT A DRAFT AROUND THE DOOR. THE CREW DID NOT NOTICE ANY IRREGULARITIES WITH THE EXTERIOR HANDLE WHEN THEY DID THE PREFLIGHT. EXAMINATION OF THE DOOR REVEALED THAT THE LOCKING PIN RIGGING WAS CORRECT AND THE PIN RECEPTICALE APPEARED NORMAL. TESTS SHOW THAT ONCE THE PINS ARE RETRACTED FROM THEIR NORMAL OVERCENTER POSITIONS, THE DOOR WILL FALL FREE OF THE FRAME OUTBOARD. THIS AIRCRAFT IS NOT PRESSURIZED.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record SEA82IA029
- Event ID
- 20020917X02630
- Case number
- SEA82IA029
- 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. 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: 948adef6a8ec42fa4b3eea451dac96a2a08501445ea93661caaf96e927e59246; retrieved 2026-09-18T21:12:12.653Z.