N99TH

Beech B-99 Minor injury Part 135 — operator not named in the NTSB record

Beech B99 No injuries Part 135 — Alpine Aviation, Inc.

Operated by ALPINE AIR (per NTSB report)

BEECH B99 No injuries — CHAUTAUGUA AIR

Operated by CHAUTAUGUA AIR (per NTSB report)

ATA 2820

Part: NIPPLE — CRACKED (FUEL CELL)

RIGHT INBOARD BOX SECTION FUEL CELL, VENT SUPPLY NIPPLE CRACKED.

ATA 7312

Part: FUEL HEATER — CRACKED (RT ENGINE)

DURING SCHEDULED INSPECTION OF RIGHT ENGINE, DISCOVERED THE FUEL/OIL HEATER BASE TAB WAS CRACKED. THE HEATER WAS REPLACED WITH A SERVICEABLE HEATER. THE HEATER IS MOUNTED TO THE ENGINE WITH ONLY TWO TABS AND A COUPLE OF HARD LINES. (X)

ATA 7230

Part: BLADE — SEPARATED (RT ENGINE)

ENGINE FAILED JUST AFTER TAKEOFF DUE TO BLADE SEPARATION ON CT DISC. ENGINE TEAR DOWN PERFORMED AT A CERTIFIED REPAIR STATION. (X)

ATA 7323

Part: GOVERNOR — LEAKING (OVERSPEED)

RIGHT ENGINE LEAKING OIL AT FRONT SECTION. PROBLEM DETERMINED TO BE CRACKED HOUSING ON AUTOFEATHER DUMP SOLENOID. REPLACED ENTIRE OVERSPEED GOVERNOR WITH SERVICEABLE OVERSPEED GOVERNOR. PART POSSIBLY CRACKED AS A RESULT OF MATING TWO UNEVEN SURFACES. (X)

ATA 2720

Part: BELLCRANK — CORRODED (RUDDER)

DURING A ROUTINE INSPECTION, THE RUDDER WAS FOUND TO HAVE SOME FREE-PLAY AT THE TOP PIVOT BEARING SUPPORT. IT WAS NECESSARY TO REMOVE THE RUDDER TO INSPECT FOR HIDDEN DAMAGE. UPON REMOVAL, NOTICED THE RUDDER BELLCRANK CORRODED AT THE BOLT HOLES THAT SECURE THE RUDDER TO THE BELLCRANK. THE DEFECTIVE BELLCRANK WAS REPLACED WITH A SERVICEABLE BELLCRANK. FUTURE INSPECTION TECHNIQUES WILL INCLUDE MINOR DISASSEMBLY IN THIS AREA TO INSPECT FOR CORROSION. (X)

ATA 7250

Part: BLADE — MISSING (PT DISK)

ON TAKEOFF, PILOT FELT AIRCRAFT SHUDDER, RETURNED TO FIELD WITHOUT ANY DAMAGE TO AIRCRAFT. UPON INVESTIGATION ON ENGINE, FOUND 2 INCH SQUARE AREA MISSING FROM EXHAUST. UPON FURTHER INVESTIGATION, FOUND PORTION OF POWER TURBINE BLADE MISSING. THIS ENGINE HAD 339.1 HOURS SINCE POWER SECTION WAS DISASSEMBLED FOR POWER TURBINE BLADE INSPECTION. (X)

ATA 6122

Part: PROP GOVERNOR — ERRATIC (RT ENGINE)

PROPELLER GOVERNOR OPERATED SLUGGISHLY REGARDING PROPELLER RPM CHANGES FROM HIGH POWER SETTINGS TO IDLE ON SHORT FINAL. THE PROPELLER GOVERNOR WAS CHANGED FOR TROUBLESHOOTING PURPOSES AND CONSEQUENTLY ALLEVIATED THE DISCREPANCY. THE PILOT VALVE MAY HAVE BEEN STUCK IN THE CLOSED POSITION NOT ALLOWING OIL TO DRAIN FROM THE HUB AND FORCING THE PROPELLER BLADES TO REMAIN IN A FLAT PITCH. THIS, IN TURN, WOULD CAUSE A YAW TOWARD THE DIRECTION OF THE PROP WITH THE FLAT BLADE PITCH.

ATA 7532

Part: BLEED VALVE — LEAKING (COMPRESSOR)

ENGINE TEMPERATURE, N1 HIGH, TORQUE LOW, AND FUEL FLOW HIGH. INSPECTED FIRST STAGE COMPRESSOR SECTION BLADES FOR DAMAGE AND P3 LINES FOR CHAFED SECTIONS AND LOOSE FITTINGS. REPLACED BLEED VALVE FOR TROUBLESHOOTING PURPOSES. ALL ELSE CHECKED GOOD. PERFORMED JET-CAL ON ALL ENGINE INSTRUMENTS AND PERFORMED DPS RUN BEFORE AND AFTER WORK PERFORMED. POST-DPS RUN NUMBERS CHECKED GOOD. SUBMITTER STATED IT WAS NOT DETERMINED WHAT CAUSED BLEED VALVE TO MALFUNCTION.

ATA 2810

Part: FUEL CELL — LEAKING (FUSELAGE)

FUEL WAS FOUND LEAKING FROM AREA OTHER THAN FUEL SUMP. TROUBLESHOT PROBLEM TO SMALL HOLE AT UPPER, AFT CORNER. REPLACED FUEL CELL WITH SERVICEABLE FUEL CELL IAW BEECH 99 MM. THE AGE OF THE OLD FUEL CELL COULD NOT BE DETERMINED BY RELIABLE MEANS, BUT WAS SUSPECTED TO BE PART OF THE PROBLEM. ALL HANGERS WERE IN PLACE AND DID NOT CAUSE THE SOURCE OF THE LEAK.

ATA 5280

Part: HINGE — WORN (MLG DOOR)

INSPECTION OF GEAR DOOR HINGE REVEALED FORE AND AFT MOVEMENT BETWEEN HINGE HALVES. THIS ACTION RESULTED IN EXCESS TRAVEL OF DOOR IN THE GEAR DOWN POSITION. REPLACED HINGE AND 2 COUPLE LINKAGE COMPONENTS. POSSIBLE CAUSE OF HINGE DISCREPANCY DETERMINED TO BE CAUSED BY A COMBINATION OF NORMAL AGING AND VIBRATION ASSOCIATED WITH THE NORMAL OPERATION OF THE AIRPLANE.