Cessna 421B N316MH

Summary

On 25 September 1990 at about 16:30 local time, a Cessna 421B registered N316MH was involved in an accident near Jefferson, Georgia, United States. 3 people were on board and 3 died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

25 September 1990 at 16:30

Classification

Accident

Location

Jefferson, Georgia, United States

Nearest airport

Jackson County (19A)

Coordinates

34.1307, -83.5903

Aircraft

Cessna 421B

Registration

N316MH

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Executive/Corporate

Phase of flight

Not recorded

Route

Unknown → Greer

Aircraft damage

Destroyed

Weather

VMC

Light

Day

NTSB number

ATL90FA179

3 people died.

FAILURE OF THE PILOT TO PERFORM THE CORRECT EMERGENCY PROCEDURES, WHEN CONFRONTED WITH A LOSS OF ENGINE POWER, AND HIS FAILURE TO MAINTAIN MINIMUM CONTROL SPEED (VMC), WHICH RESULTED IN A LOSS OF AIRCRAFT CONTROL.

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

Read the full NTSB narrative

SHORTLY AFTER TAKEOFF, THE ACFT WAS SEEN FLYING LOW OVR TREES, FLWD BY A RAPID ROLL TO THE LEFT & A COLLISION WITH WOODED TRRN. ONE WITNESS RPRTD SEEING GRAY SMOKE TRAILING THE LEFT ENG BFR THE CRASH. AN INSPN OF THE WRECKAGE REVEALED THE LEFT ENGINE SPARK PLUGS WERE BLACK & HEAVILY SOOTED. NEITHER PROP HAD BEEN FEATHERED BFR THE ACDNT. THE LNDG GEAR WAS FND IN AN EXTENDED PSN. FURTHER INVESTIGATION REVEALED THAT CESSNA MULTI-ENG SVC BULLETIN (SB) 88-3 WAS NOT COMPLIED WITH. THIS SB MODIFIED THE FUEL SYS TO PROVIDE FOR DRCT PLT (RATHER THAN AUTOMATIC) ACTUATION OF THE OUTPUT PRESSURE OF THE AUXILIARY FUEL PUMPS. BOTH ENGS RAN SATISFACTORILY ON A TEST STAND FLWG THE ACDNT. NO OTR EVIDENCE OF MECH FAILURE OR MALFUNCTION WAS FND.

Quoted verbatim from the NTSB record.