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Flight crew of small transport returned and landed account heat and some smoke in cabin. Emergency landing.
| Attributes | |
| ACN | 125500 |
| Time | |
| Date | 198910 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mce |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mer |
| Operator | common carrier : air carrier |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | climbout : intermediate altitude landing other other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 2395 flight time type : 850 |
| ASRS Report | 125500 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem flight crew : declared emergency other |
| Consequence | other Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Departure from merced to san francisco. First officer was PF. Normal takeoff runway 30, left-hand turn to 280. Climbing thru 1000' first officer called for propellers 85, climb check. Air conditioning was then turned on. As the propellers were reduced to 85% north, a loud bang was heard and a dull jolt was felt by the captain through the floor. We checked all system gauges and warning lights and all appeared normal. Visual inspection of wings and engines appeared normal. After completing the climb check, a faint odor was detected. Captain looked back toward our only passenger and he was waving his arms and saying it was getting hot. A light haze/smoke was preset in the cabin. Captain turned off air conditioning and advised the first officer of cabin smoke. We agreed to turn left to return to merced airport. Bang, heat, smoke caused by broken clamp on bleed line. Emergency landing performed at mce, phase I and ii reviewed. Aircraft returned to service after repair. Due to mechanical nature of incident it is unknown what future actions will be taken to correct the situation.
Original NASA ASRS Text
Title: FLT CREW OF SMT RETURNED AND LANDED ACCOUNT HEAT AND SOME SMOKE IN CABIN. EMERGENCY LNDG.
Narrative: DEP FROM MERCED TO SAN FRANCISCO. F/O WAS PF. NORMAL TKOF RWY 30, LEFT-HAND TURN TO 280. CLIMBING THRU 1000' F/O CALLED FOR PROPELLERS 85, CLIMB CHECK. AIR CONDITIONING WAS THEN TURNED ON. AS THE PROPELLERS WERE REDUCED TO 85% N, A LOUD BANG WAS HEARD AND A DULL JOLT WAS FELT BY THE CAPT THROUGH THE FLOOR. WE CHECKED ALL SYSTEM GAUGES AND WARNING LIGHTS AND ALL APPEARED NORMAL. VISUAL INSPECTION OF WINGS AND ENGINES APPEARED NORMAL. AFTER COMPLETING THE CLIMB CHECK, A FAINT ODOR WAS DETECTED. CAPT LOOKED BACK TOWARD OUR ONLY PAX AND HE WAS WAVING HIS ARMS AND SAYING IT WAS GETTING HOT. A LIGHT HAZE/SMOKE WAS PRESET IN THE CABIN. CAPT TURNED OFF AIR CONDITIONING AND ADVISED THE F/O OF CABIN SMOKE. WE AGREED TO TURN LEFT TO RETURN TO MERCED ARPT. BANG, HEAT, SMOKE CAUSED BY BROKEN CLAMP ON BLEED LINE. EMER LNDG PERFORMED AT MCE, PHASE I AND II REVIEWED. ACFT RETURNED TO SERVICE AFTER REPAIR. DUE TO MECHANICAL NATURE OF INCIDENT IT IS UNKNOWN WHAT FUTURE ACTIONS WILL BE TAKEN TO CORRECT THE SITUATION.
Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.