What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On December 10, 2006, Beech bonanza N47TJ, BE33, was VFR enroute to Saratoga springs, NY. The pilot reported alternator problems approximately 12 miles northeast of the chester, VOR, ma at 0914 EST, 12/10/06. Bradley approach advised pilot that turners falls airport was about eight miles to the east however pilot did not respond. The aircraft continued to destination, Saratoga springs, NY (5B2) and intentionally landed gear up at approximately 1035. The pilot (sole occupant) was uninjured. Maintenance investigation discovered the following: on 12/11/2006, reporting inspector arrived at 5B2 to inspect the aircraft to investigate possible cause of the electrical power failure. Inspector requested mechanic to turn on battery switch to verify battery voltage. In doing so, battery voltage was shown at 24 volts and rapidly declining to approximately 16 volts. Inspector examined the primary and standby alternator for any obvious discrepancies. Upon completion, it was noted on the primary alternator that the aux lug was loose (aux lug supplies power to the annunciator panel). Inspector then requested that mechanic remove the top cover of the battery box to inspect the integrity of the battery and terminal connections. Upon removal of the cover, inspector found the ground cable (neg) severely corroded in and around terminal lug. In addition, inspector examined emergency landing gear procedures "quick reference" card. Emergency landing gear procedure requires that the PIC pull the landing gear circuit breaker (30 amp) and crank down the gear between 45 and 50 turns. Inspector requested that mechanic duplicate procedure to demonstrate the integrity of the manual extension of the landing gear. In doing so, mechanic was unable to pull out the 30 amp c/b, as well as the inspector. Discrepancy was noted and communicated to owner. On 12/14/2006, a review of the aircraft maintenance log books was completed. It appears that the primary alternator has been replaced in 3/2005, and 3/2006, with no reason or explanation as to why there were yearly failures with the alternator. This case is considered closed.
As the FAA filed it
(-23) ON DECEMBER 10, 2006, BEECH BONANZA N47TJ, BE33, WAS VFR ENROUTE TO SARATOGA SPRINGS, NY. THE PILOT REPORTED ALTERNATOR PROBLEMS APPROXIMATELY 12 MILES NORTHEAST OF THE CHESTER, VOR, MA AT 0914 EST, 12/10/06. BRADLEY APPROACH ADVISED PILOT THAT TURNERS FALLS AIRPORT WAS ABOUT EIGHT MILES TO THE EAST HOWEVER PILOT DID NOT RESPOND. THE AIRCRAFT CONTINUED TO DESTINATION, SARATOGA SPRINGS, NY (5B2) AND INTENTIONALLY LANDED GEAR UP AT APPROXIMATELY 1035. THE PILOT (SOLE OCCUPANT) WAS UNINJURED. MAINTENANCE INVESTIGATION DISCOVERED THE FOLLOWING: ON 12/11/2006, REPORTING INSPECTOR ARRIVED AT 5B2 TO INSPECT THE AIRCRAFT TO INVESTIGATE POSSIBLE CAUSE OF THE ELECTRICAL POWER FAILURE. INSPECTOR REQUESTED MECHANIC TO TURN ON BATTERY SWITCH TO VERIFY BATTERY VOLTAGE. IN DOING SO, BATTERY VOLTAGE WAS SHOWN AT 24 VOLTS AND RAPIDLY DECLINING TO APPROXIMATELY 16 VOLTS. INSPECTOR EXAMINED THE PRIMARY AND STANDBY ALTERNATOR FOR ANY OBVIOUS DISCREPANCIES. UPON COMPLETION, IT WAS NOTED ON THE PRIMARY ALTERNATOR THAT THE AUX LUG WAS LOOSE (AUX LUG SUPPLIES POWER TO THE ANNUNCIATOR PANEL). INSPECTOR THEN REQUESTED THAT MECHANIC REMOVE THE TOP COVER OF THE BATTERY BOX TO INSPECT THE INTEGRITY OF THE BATTERY AND TERMINAL CONNECTIONS. UPON REMOVAL OF THE COVER, INSPECTOR FOUND THE GROUND CABLE (NEG) SEVERELY CORRODED IN AND AROUND TERMINAL LUG. IN ADDITION, INSPECTOR EXAMINED EMERGENCY LANDING GEAR PROCEDURES "QUICK REFERENCE" CARD. EMERGENCY LANDING GEAR PROCEDURE REQUIRES THAT THE PIC PULL THE LANDING GEAR CIRCUIT BREAKER (30 AMP) AND CRANK DOWN THE GEAR BETWEEN 45 AND 50 TURNS. INSPECTOR REQUESTED THAT MECHANIC DUPLICATE PROCEDURE TO DEMONSTRATE THE INTEGRITY OF THE MANUAL EXTENSION OF THE LANDING GEAR. IN DOING SO, MECHANIC WAS UNABLE TO PULL OUT THE 30 AMP C/B, AS WELL AS THE INSPECTOR. DISCREPANCY WAS NOTED AND COMMUNICATED TO OWNER. ON 12/14/2006, A REVIEW OF THE AIRCRAFT MAINTENANCE LOG BOOKS WAS COMPLETED. IT APPEARS THAT THE PRIMARY ALTERNATOR HAS BEEN REPLACED IN 3/2005, AND 3/2006, WITH NO REASON OR EXPLANATION AS TO WHY THERE WERE YEARLY FAILURES WITH THE ALTERNATOR. THIS CASE IS CONSIDERED CLOSED.
Other reports on N47TJ · 1
Matched to the same aircraft by N-number and date.