Mitsubishi MU-2B-25 N666HB

Summary

On 9 January 1990 at about 22:35 local time, a Mitsubishi MU-2B-25 registered N666HB, operated by Riggs, Charles A., was involved in an accident near Jacksonville, Florida, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

9 January 1990 at 22:35

Classification

Accident

Location

Jacksonville, Florida, United States

Nearest airport

Craig Muni (CRG)

Coordinates

30.3601, -81.5109

Aircraft

Mitsubishi MU-2B-25

Registration

N666HB

Category

Airplane

Engines

2

Operator

Riggs, Charles A.

Operating rule

Part 91: General Aviation

Purpose of flight

Business

Phase of flight

Not recorded

Route

Augusta → Vero Beach

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

MIA90LA051

Nobody was injured.

FAILURE OF THE OWNER/OPERATOR TO OBTAIN PROPER MAINTENANCE AND INSPECTION OF THE AIRCRAFT. FACTORS RELATED TO THE ACCIDENT WERE: OPERATION OF THE AIRCRAFT BY THE PILOT WITHOUT A CURRENT ANNUAL INSPECTION (KNOWN DEFICIENCY), AN OIL LEAK IN THE LEFT ENGINE WHICH RESULTED IN OIL EXHAUSTION, AND AN UNDETERMINED PROPELLER CONTROL LINKAGE PROBLEM WITH THE RIGHT ENGINE.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

THE LT PROP & ENG WERE FEATHERED & SECURED DUE TO LOW OIL PRESSURE. THE PLT DIVERTED TO AN ALTERNATE ARPT. DURING FINAL APCH WITH A LANDING CONFIGURATION, HE APPLIED POWER, BUT THE RT ENG PROVIDED ONLY ABOUT 40% TORQUE. ATMTS TO CORRECT THE PROBLEM WERE UNSUCCESSFUL. THE PLT RETRACTED THE GEAR & DITCHED THE ACFT. EXAM OF LT ENG NACELLE REVEALED OIL LEAKAGE FROM AN UNKNOWN SOURCE, WHICH DEPLETED THE OIL SUPPLY. THE RT ENG CONDITION & POWER LEVERS WERE OPERATIONALLY CHECKED. WHEN MOVED, THE LINKAGE AT THE PROP GOVERNOR DID NOT MOVE; THE FUEL CONTROL CONCENTRIC SHAFT CONTROL LINKAGE ASSY WAS 'STIFF.' NO DETERMINATION COULD BE MADE AS TO WHY THE PROP GOVERNOR DID NOT MOVE WHEN THE CONDITION LEVER WAS MOVED. THE RT ENG WAS REMOVED FOR AN ENG RUN. IT OPERATED NORMALLY. THE PROP GOVERNOR & PROP PITCH CONTROL WERE TESTED; THEY OPERATED NORMALLY. THE LAST ANNUAL INSPN WAS DATED 3/5/84. A 100 HR INSPN OF THE AIRFRAME (ONLY) WAS PERFORMED 2.3 FLT HRS BEFORE THE ACDNT. THE ENG LOGBOOKS WERE NOT LOCATED.

Quoted verbatim from the NTSB record.