Mitsubishi MU-2K N7DD
24 June 1985 · San Juan · No injuries
Summary
On 24 June 1985 at about 21:39 local time, a Mitsubishi MU-2K registered N7DD, operated by Executive Airline & Charter, was involved in an incident near San Juan. 3 people were on board and nobody was injured. The aircraft was slightly damaged. No probable cause statement is available for this record.
The record
- Date
- at 21:39
- Classification
- Incident
- Location
- San Juan
- Nearest airport
- Puerto Rico International (SJU)
- Coordinates
- Not recorded
- Aircraft
- Mitsubishi MU-2K
- Registration
- N7DD
- Category
- Airplane
- Engines
- 2
- Operator
- Executive Airline & Charter
- Operating rule
- Part 135: Air Taxi & Commuter
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- St.thomas → Unknown
- Aircraft damage
- Minor
- Weather
- VMC
- Light
- Day
- NTSB number
- MIA85IA203
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 3 | 0 | 0 | 0 | 3 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
AFTER DEPARTURE THE NOSE GEAR UNSAFE LIGHT REMAINED ILLUMINATED PETER GEAR RETRACTION. ATTEMPTS TO GET A SAFE LIGHT ON THE NOSE GEAR IN THE EXTENDED POSITION WAS UNSUCCESSFUL AND WHEN THE AIRCRAFT LANDED IT SETTLED ONTO A PARTIALLY RETRACTED NOSE GEAR. INSPECTION OF THE AIRCRAFT REVEALED THAT THE NOSE GEAR STRUT HAD NOT FULLY EXTENDED AND THAT WHEN THE GEAR WAS RETRACTED THE NOSE GEAR TIRES CAUGHT THE NOSE GEAR DOORS PREVENTING THEM FROM OPENING. THE GEAR RETRACTED AGAINST THE GEAR DOORS CAUSING FAILURE OFTHE RETRACT JACKSCREW. A MICROSWITCH WHICH CUTS THE GEAR MOTOR OFF WHEN THIS CONDITION OCCURRS WAS FOUND OUT OF ADJUSTMENT AND DID NOT OPERATE. ADDITIONALLY IT WAS FOUND THAT THE MECHANICS WHO DID THE LAST GEAR RETRACT TEST ON THE AIRCRAFT USED A MAINTENANCE MANUAL FOR AN EARLIER MODEL AIRCRAFT WHICH DID NOT HAVE THIS SAFETY SWITCH THUS FAILING TO CHECK IT FOR ADJUSTMENT. NO REASON AS TO WHY THE NOSE GEAR STRUT DID NOT FULLY EXTEND WAS FOUND.
Quoted verbatim from the NTSB record.
Other Mitsubishi MU-2K accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 28 Feb 1977 | Mitsubishi MU-2K | Palm Beach, Florida, United States | - | No injuries | - |
| 16 Oct 1976 | Mitsubishi MU-2K | Charlotte, North Carolina, United States | E and M Coal | No injuries | - |
| 30 Sep 1975 | Mitsubishi MU-2K | Beloit, Kansas, United States | Orion SA Mexic | Fatal | 1 |
| 13 Nov 1975 | Mitsubishi MU-2K | Jefferson City, Tennessee, United States | Quinton Jones | Fatal | 5 |
| 14 Jan 1974 | Mitsubishi MU-2K | Covington, Georgia, United States | Hoover Inc & H | No injuries | - |