- Date
- November 29, 2021, 11:57 local (16:57 UTC)
- Place
- Miami, FL
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N705CKBoeing 747-4B5F
- Defining event
- Landing: Aircraft structural failure
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Major Investigations Division
- Parties
- FAA, Boeing
- Case key
- 104355
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
Incorrect lubrication of the foreflap fitting assembly.
Findings · 1
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The flight crew reported that upon arrival at KMIA, another flight reported seeing something fly off their airplane. Post-flight inspection revealed damage to the right-hand inboard flaps, fuselage and right horizontal stabilizer. Upon lowering flaps, a section of the trailing edge flap was also missing. Examination of the damaged components revealed that the right inboard foreflap fitting assembly had not been lubricated in accordance with a manufacturer’s service bulletin.
Aircraft
- Registration
- N705CK
- Reported as
- Boeing 747-4B5F
- Category
- Airplane
- Serial number
- 26413
- Built
- 2001
- Engines
- P & W PW4056, 56,750 lbs thrust, turbo fanP & W PW4056, 56,750 lbs thrust, turbo fanP & W PW4056, 56,750 lbs thrust, turbo fanP & W PW4056, 56,750 lbs thrust, turbo fan
- Damage
- Substantial damage
- Flight
- Part 121
- Operator
- Kalitta Air LLC
- Registered owner
- Kalitta Air LLC
- Airworthiness certificate
- Standard, Transport
- Departed
- SCEL · Santiago, OF
- Destination
- Same as departure
- Flight plan
- IFR
- Airport
- KMIA · Miami
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 47
- Certificate
- Airline transport
- Airplane ratings
- Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1
- Seat
- Left
- Flight hours
- 3,039 total · 3,039 in this make and model
- Role
- Co-pilot
- Seat
- Right
- Flight hours
- 1,805 total · 1,805 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Observed at
- KMIA