A BEECH BE19 ENG WOULD NOT START IN EXTREME COLD USING THE STARTER. WITH IGNITION SWITCH OFF; PROP WAS TURNED BY HAND AND ENG STARTED. AIRPLANE ROLLED FORWARD STRIKING A HANGAR INCURRING DAMAGE.
Synopsis
A BEECH BE19 ENG WOULD NOT START IN EXTREME COLD USING THE STARTER. WITH IGNITION SWITCH OFF; PROP WAS TURNED BY HAND AND ENG STARTED. AIRPLANE ROLLED FORWARD STRIKING A HANGAR INCURRING DAMAGE.
Narrative
ACFT EQUIPPED WITH BENDIX IGNITION SWITCH. ACFT IN COMPLIANCE WITH AIRWORTHINESS DIRECTIVE 76-07-12 R1. ATTEMPTED TO START ACFT TWICE IN BELOW FREEZING CONDITIONS. THE STARTER WAS TURNING; BUT DID NOT HAVE ENOUGH FRICTION AGAINST THE FROZEN BELT TO MOVE (OR TURN) THE PROP (OR ENG). THE BATTERY; ALTERNATOR; AND IGNITION SWITCHES WERE SWITCHED TO THE 'OFF' POS AND VERIFIED BEFORE EXITING THE ACFT. THE PROP WAS TURNED TWICE BY HAND TO LOOSEN UP THE FROZEN STARTER BELT. ON THE SECOND TURN; THE ACFT ENG STARTED WHILE THE IGNITION WAS OFF AND LATER RECONFIRMED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THIS AIRPLANE HAS AN AIRWORTHINESS DIRECTIVE THAT REQUIRES CHKING THE IGNITION SWITCH FOR CORRECT OP AT EVERY ENG RUN. THE RPTR SAID THE LAST TIME THE AIRPLANE WAS OPERATED; THE SWITCH PERFORMED ITS NORMAL FUNCTION AND SHUT DOWN THE ENG. THE RPTR STATED THAT WHILE ATTEMPTING TWICE TO START THE ENG USING THE STARTER; IT WOULD NOT CRANK THE ENG DUE TO EXTREME COLD. THE RPTR SAID THE BATTERY; IGNITION SWITCH AND ALTERNATOR WERE ALL VERIFIED IN THE 'OFF' POS AND THE PROP WAS TURNED TWICE BY HAND TO FREE UP THE FROZEN STARTER BELT. THE RPTR SAID ON THE SECOND TURN OF THE PROP THE ENGS STARTED AND THE AIRPLANE ROLLED FORWARD 50 FT AND STRUCK A HANGAR. THE ACFT INCURRED WING LEADING EDGE; COWLING; AND PROP DAMAGE. THE RPTR STATED ON INVESTIGATION THE IGNITION SWITCH WAS VERIFIED IN THE 'OFF' POS. THE RPTR SAID THE FAA HAS RULED THIS EVENT AS AN INCIDENT.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.