ANC88IA013 · Cessna 402B
Cessna 402B · Incident: main gear collapsed during landing
From Ted Stevens Anchorage International Airport (ANC) to Merle K (Mudhole) Smith Airport (CDV)
Event
- NTSB case
- ANC88IA013
- 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
Cessna 402B
- Aircraft type
- Cessna 402
- 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
- N5718M
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Ted Stevens Anchorage International Airport (ANC), Anchorage, AKTo Merle K (Mudhole) Smith Airport (CDV), Cordova, AK
- 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
- Landing · landing roll
- 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
- Main gear collapsed
- 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 › Gear pin, improper
- Landing gear, main gear strut scissors › Disconnected
- Other maintenance personnel › Acft/equip, inadequate compliance determination
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE COMPANY MAINTENANCE PERSONNEL WERE AWARE OF A SHIMMY PROBLEM BUT THEY THOUGHT IS WAS ONLY WORN BUSHINGS. THE MAINTENANCE PEOPLE STATED THEY INSPECTED THE PART BUT FOUND NO PROBLEM. THE PILOT-IN-COMMAND ALSO STATED HE FOUND NO PROBLEM UPON VISUALLY INSPECTING THE ASSEMBLY JUST PRIOR TO THE INCIDENT. THE RECORDS DO NOT INDICATE A LANDING GEAR CHANGE, HOWEVER, THE WRONG PART WAS INSTALLED AS OUTLINED IN THE PARTS MANUAL. FURTHERMORE, AN UNCERTIFICATED ASSISTANT TO THE DIRECTOR OF MAINTENANCE RELEASED THE AIRPLANE WITHOUT HAVING A QUALIFIED MECHANIC INSPECT THE GEAR. THE PILOT-IN-COMMAND ACCEPTED THE AIRPLANE WITH A KNOWN DEFICIENCY AND DID NOT ENTER THE DISCREPANCY UNTIL AFTER THE INCIDENT. THE LEFT MAIN LNDG GEAR COLLAPSED DURING LANDING. THE GEAR HAD 'WOBBLED' DURING TAXI AT ANCHORAGE. THE PLT AND A BAGGAGE HANDLER HAD INSPECTED THE GEAR AND FOUND NOTHING OUT OF ORDER. THE PLT TELEPHONED CO MAINTENANCE AND THE CO GEN MGR SAID THE CO WAS AWARE OF THE SHIMMY PROBLEM AND TO TAKE THE FLT.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record ANC88IA013
- Event ID
- 20001213X32225
- Case number
- ANC88IA013
- 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: 8cc34db4fb55f0266e4a275a2c177f993c4a17e8b27b44bea04a46be0c48346a; retrieved 2026-09-18T19:36:23.067Z.