Fast Air Carrier Boeing 707-341 incident
Boeing 707-341 · Incident: airframe, component or system failure during initial climb
From Miami International Airport (MIA) to Jorge Chávez International Airport (SPIM)
Event
- NTSB case
- MIA93IA168
- 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
- Airline
- 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
Boeing 707-341
- Aircraft type
- Boeing 707
- 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
- N107BV
- Operator
- Fast Air Carrier
- Onboard fatalities
- Unknown
- Route
- From Miami International Airport (MIA)To Jorge Chávez International Airport (SPIM), Lima
- 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 129: Foreign
- 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
- Initial climb
- 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
- Airframe, component or system failure
- 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, not performed
Approximate · Estimated position: the centre of Miami, FL, the place the record names. Not the accident site.
NTSB narrative
FLIGHT EXPERIENCED LOSS OF THE NUMBER ONE ENGINE CORE COWLING SHORTLY AFTER LIFTOFF. METALLURGICAL EXAMINATION OF THE SEPARATED COWLING INDICATED THE INBOARD FORWARD COWLING HINGE SUPPORT STRUCTURE HAD FAILED DUE TO FATIGUE. THIS ALLOWED THE COWLING TO OPEN AND THEN SEPARATE FROM THE ENGINE. THE HINGE REMAINED IN PLACE ON THE AIRCRAFT AFTER THE COWLING SEPARATED. THE MANUFACTURER OF THE COWLING, WHICH IS PART OF AN ENGINE HUSH KIT, REQUIRES THE HINGE SUPPORT STRUCTURE BE INSPECTED FOR CRACKS EACH 300 FLIGHT HOURS.
Probable cause
THE IMPROPER INSPECTION OF THE ENGINE CORE COWLING, WHICH RESULTED IN FATIGUE CRACKS IN THE FORWARD INBOARD HINGE SUPPORT STRUCTURE TO GO UNDETECTED. THIS RESULTED IN THE HINGE SEPARATING AND THE COWLING SEPARATING IN FLIGHT.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record MIA93IA168
- Event ID
- 20001211X13195
- Case number
- MIA93IA168
- 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: 322447e87a42b64d99994fd5ed8f2248e200aac5f26272b8d4ebb78f2739080e; retrieved 2026-09-18T18:32:09.833Z.