NTSB Identification: ATL88IA102.
The docket is stored on NTSB microfiche number 36764.
Nonscheduled 14 CFR
Incident occurred Thursday, March 03, 1988 in BIRMINGHAM, AL
Probable Cause Approval Date: 01/25/1990
Aircraft: Government Aircraft Fact (GAF) NOMAD N22B, registration: N422NE
Injuries: 6 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

THE TWIN ENG TURBOPROP COMMUTER HAD JUST LEVELED OUT AT 10,000 FT IN IMC, WITH LIGHT RAIN AND TEMP 6 DEGREES C OAT, WHEN THE CREW NOTICED A POWER LOSS INVOLVING THE RIGHT ENG. IT QUIT SHORTLY THEREAFTER. WHILE THEY WERE CALLING CENTER FOR LOWER ALT THE LEFT ENGINE QUIT. THE CREW LATER REPORTED THAT BOTH ENGS HAD SEIZED AND WOULD NOT TURN FOR SEVERAL MINUTES. THE CREW CONTINUED TO ATTEMPT RESTARTS UNTIL THEY WERE SUCCESSFUL. THE DESCENT WAS STOPPED AT 4000 FT AND THE ACFT WAS RETURNED TO THE DEPARTURE ARPT. THEN ENIGNES WERE NOT EQUIPPED WITH AN AUTO RELIGHT KIT, OR CONTINUOUS IGNITION. FLT MANUAL AND COMPANY PROCEDURES DID NOT REQUIRE THE USE OF ENG ANTI-ICE IN VISIBLE MOISTURE AT TEMPS ABOVE 6 DEG C. OAT GAGE IS LOCATED NR CAPT'S LT KNEE AND DIFFICULT TO READ. ENGS ARE NOT EQUIPPED WITH ICING DETECTION SYSTEM. ACFT IS CERTIFIED FOR FLT INTO KNOWN ICING CONDS.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

ANTI-ICE/DEICE SYSTEM..DELAYED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

ACFT/EQUIP,INADEQUATE AIRCRAFT MANUALS..MANUFACTURER

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

ALL ENGINES..ICE


Contributing Factors

WEATHER CONDITION..ICING CONDITIONS


Contributing Factors

INADEQUATE CERTIFICATION/APPROVAL,AIRCRAFT..FAA(ORGANIZATION)



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