N704LX

CESSNA 150M No injuries Part 91 — VIRGINIA POLYTECHNIC INSTUTUTE

Operated by VIRGINIA POLYTECHNIC INSTUTUTE (per NTSB report)

ATA 2150

Part: ACM — SEIZED · airframe 10,763 hrs · 6,641 cycles

ON DESCENT CREW REPORTED SMOKE IN THE COCKPIT FOLLOWED BY A BURNING SMELL. ACFT LANDED SAFELY. MX FOUND THE AFT ACM FAILED AND PRODUCING SMOKE. THE ACM WAS REPLACED.

ATA 7261

Part: OIL SYSTEM — LEAKING (NR1 ENGINE) · airframe 9,951 hrs · 6,135 cycles

IN FLIGHT, CREW REPORTED AN OIL ODOR AND SMOKE HAZE IN THE COCKPIT AND CABIN. ADDITIONALLY, THE CREW MONITORED THE OIL QTY FOR THE REMAINDER OF THE FLIGHT AND REPORTED LOOSING ABOUT 1 QUART OF OIL PER HOUR. THE ACFT DIVERTED AND LANDED SAFELY. MX ISOLATED THE PROBLEM TO THE NR 1 ENGINE. OIL WAS FOUND TO BE LEAKING FROM INSIDE THE ENGINE. ENGINE WILL BE REMOVED AND REPLACED.

ATA 8300

Part: CARBON SEAL — LEAKING (ACCY GEARBOX) · airframe 9,948 hrs · 6,134 cycles

DURING FLIGHT CREW REPORTED AN OILY BURNING ODOR FROM THE AIR CONDITIONING DUCTS. CREW DEACTIVATED THE FWD AC PAC AND THE ODOR WENT AWAY. MX FOUND THE NR1 ENGINE ACCY GEARBOX BREATHER ADAPTOR CARBON SEAL LEAKING. THE SEAL WAS REPLACED AND THE LEAK WAS STILL PRESENT. MX FOUND THAT THE NEWLY INSTALLED SEAL WAS NOT PROPERLY SEATED. THE SEAL WAS AGAIN REPLACED AND SUBSEQUENT ENGINE RUNS PROVED SUCCESSFUL. THE FAULT REPEATED ON THE NEXT FLIGHT.

ATA 5510

Part: HINGE BRACKET — CRACKED (HORIZONTAL STAB) · airframe 9,945 hrs · 6,132 cycles

DURING A SCHEDULED MX INSP, TECHS FOUND A CRACK IN THE RT INBD HORIZONTAL STABILIZER HINGE BRACKET. THE REQUIRED NDT INSP WAS PERFORMED AND CRACK WAS FOUND TO BE LESS THAN 0.49". THEREFORE A 50 HOUR RECURRING INSP HAS BEEN SCHEDULED FOR THIS ACFT.

ATA 2612

Part: DAU — FALSE INDICATION (NR 1)

IN CRUISE CREW REPORTED INTERMITTENT NR 1 ENGINE AND APU FIRE EICAS WARNINGS ALONG WITH A DAU NR 1 MISCOMPARE MESSAGE ON THE EICAS. MAINTENANCE REVIEWED A RECENTLY REPLACED DAU; ON REVIEW OF THE TEARDOWN REPORT IT WAS NOTED THAT THE UNIT WAS RETURNED TO SERVICE AS A NO-FAULT-FOUND FROM THE BENCH - PREVIOUS FAILURE WAS FALSE WARNINGS ON A DIFFERENT AIRCRAFT. MAINTENANCE REPLACED THE NR 1 DAU.

ATA 2150

Part: COALESCER BAG — DIRTY (CABIN AIR) · airframe 8,171 hrs · 5,021 cycles

TRIP NR 1182065 CREW REPORTED OILY ODOR COMING FORM THE GASPERS. FLIGHT CONTINUED. MAINTENANCE FOUND THE COALESCER SOCKS DIRTY. BOTH SOCKS WERE CLEANED AND REINSTALLED.

ATA 5311

Part: FRAME — CRACKED (FUSELAGE) · airframe 8,043 hrs · 4,939 cycles

DURING A SHCEDULED INSPECTION, MAINTENANCE DISCOVERED MULTIPLE CRACKS IN THE NOSE WHEEL WELL AREA. THE CRACK ON THE UPPER FRAME WAS ABOUT .3 INCH. MX REMOVED AND REPLACED THE FRAME IAW DRAWING NR 671800, REPLACED 6717711-41-5 LINES ASSYS AND SWAPPED ALL CRT LINES AND TUBES FOR WEB REPLACEMENT IAW MM CH 20-10-03. REFERENCE SDR'S DJFA2007048A AND 048B FOR ADDITIONAL INFORMATION.

ATA 5320

Part: WEB — CRACKED (NLG WW) · airframe 8,043 hrs · 4,939 cycles

DURING A SCHEDULED INSPECTION, MAINTENANCE DISCOVERED MULTIPLE CRACKS IN THE NOSE WHEEL WELL AREA. THE UPPER CENTER WEB WAS CRACKED. THE WEB CRACK WAS ABOUT .6 INCHES LONG. MX REMOVED AND REPLACED CENTER WEB SUPPORT IAW DRAWING NR 671800, REPLACED 6717711-41-5 LINES ASSYS AND SWAPPED ALL CRT LINES AND TUBES FOR WEB REPLACEMENT IAW MM CH 20-10-03. REFERENCE SDR'S DJFA2007048 AND 048B FOR ADDITIONAL DATA.

ATA 5312

Part: DOUBLER — CRACKED (NLG WW) · airframe 8,043 hrs · 4,939 cycles

DURING A SHCEDULED INSPECTION, MAINTENANCE DISCOVERED MULTIPLE CRACKS IN THE NOSE WHEEL WELL AREA. THE LT TOP DOUBLER WAS FOUND CRACKED. THE CRACK ON THE DOUBLER WAS .8 INCHES LONG. MX REMOVED AND REPLACED THE DOUBLER IAW DRAWING NR 671800, REPLACED 6717711-41-5 LINES ASSYS AND SWAPPED ALL CRT LINES AND TUBES FOR WEB REPLACEMENT IAW MM CH 20-10-03. REFERENCE SDR'S DJFA2007048 AND 048A FOR ADDITIONAL DATA.

ATA 2120

Part: UNKNOWN — ODOR (CABIN)

TRIP NR 1158377, CREW REPORTED BURNING ODOR IN CABIN AND CABIN PAC SELECTOR SUPPLY READ 200 DEG AND INCREASING. ACM WAS MEL'D. SDR WILL BE UPDATED UPON COMPLETION OF THE CORRECTIVE ACTION.

ATA 2730

Part: ACTUATOR — BINDING (PITCH FEEL) · airframe 7,633 hrs · 4,696 cycles

CLIMBING THROUGH FL100, ON DEPARTURE, CREW REPORTED (PITCH FEEL FAIL) INDICATION ON EICAS. CREW DECLARED AN EMERGENCY AND RETURNED. MAINTENANCE DISCOVERED THE PITCH FEEL ACTUATOR BINDING INTERMITTENTLY. THE ACTUATOR WAS REPLACED. FUNCTIONAL CHECKS WERE SATISFACTORY.