Individually Owned: 150,657
Corporate Owned: 137,281
Provo Airport
Aircraft Accident/Incident Report
Provo, Utah 84603
Saturday, February 3, 1990 8:30 MST
NTSB Narrative Summary Released at Completion of Accident
DURING FLT, THE PLT NOTED A DROP IN MANIFOLD PRESSURE & DECIDED TO MAKE A PRECAUTIONARY LANDING. WHILE ON A BASE LEG TO LAND, HEAVY SMOKE & FUMES FILLED THE CABIN & REQUIRED THE PLT TO LOOK OUT THE SIDE VENT WINDOW TO COMPLETE THE LANDING. AFTER THE AIRCRAFT STOPPED ON THE RUNWAY, A FIRE IN THE ENGINE COMPARTMENT WAS EXTINGUISHED. AN EXAM REVEALED THAT THE LEFT INTERMEDIATE EXHAUST PIPE (LYCOMING PART NO: LW-15811) HAD PARTIALLY SEPARATED AT THE FLANGE. THE ENGINE CROSSOVER EXHAUST ASSEMBLY HAD BEEN MODIFIED IN ACCORDANCE WITH AD 89-12-04 & TEXTRON LYCOMING SERVICE BULLETIN #484, WHICH WERE INTENDED TO PREVENT THIS KIND OF FAILURE/SEPARATION.
NTSB Probable Cause Narrative
IMPROPER INSTALLATION BY MAINTENANCE PERSONNEL AND FATIGUE FAILURE AND LEAKAGE OF THE LEFT INTERMEDIATE EXHAUST PIPE, WHICH RESULTED IN AN IN-FLIGHT FIRE IN THE ENGINE COMPARTMENT. CONTRIBUTING FACTORS WERE: INADEQUATE SERVICE BULLETIN PROVIDED BY THE MANUFACTURER AND INSUFFICIENT STANDARDS PROVIDED BY THE (FAA) AIRWORTHINESS DIRECTIVE.
Event Information
| Type of Event | Accident |
| Event Date | 2/3/1990 |
| Event Day of the Week | Saturday |
| Time of Event | 830 |
| Event Time Zone | Mountain Standard Time |
| Event City | PROVO |
| Event State | UTAH |
| Event Country | -- |
| Zipcode of the event site | 84603 |
| Event Date Year | 1990 |
| Event Date Month | 2 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | PROVO |
| Event Location Nearest Airport ID | PVU |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 4509 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Pilot |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 50 |
| Air Temperature at event time (in degrees celsius) | -- |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 440 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Feb 9 1990 12:00AM |
| NTSB Notification Time | 1029 |
| Fiche Number and/or location -used to find docket information | 43158 |
| Date of most recent change to record | Dec 12 2000 4:46PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N21492 |
| NTSB Number | DEN90LA054 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | In-flight |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | PIPER |
| Aircraft Model | PA-32RT-300T |
| Aircraft Series Identifier | PA-32RT-30 |
| Aircraft Serial Number | 32R-7887215 |
| Certified Max Gross Weight | 3600 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 7 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | Dec 8 1989 12:00AM |
| Airframe hours since last inspection | 36 |
| Airframe Hours | 2145 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | ALPINE AVIATION, INC |
| Aircraft Owner Street Address | P.O. BOX 691 |
| Aircraft Owner City | PROVO |
| Aircraft Owner State | UT |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 84603 |
| Operator is an individual? | -- |
| Operator Name | ALPINE AVIATION INC. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | PO BOX 691 |
| Operator City | PROVO |
| Operator State | UT |
| Operator Country | |
| Operator Zip code | 84603 |
| Operator Code | 5A |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Positioning |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | SLC |
| Departure City | SALT LAKE CITY |
| Departure State | UT |
| Departure Country | |
| Departure Time | 805 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | CNY |
| Destination City | MOAB |
| Destination State | UT |
| Destination Country | |
| Specific Phase of Flight | Approach |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:35AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 13 |
| Runway Length | 7096 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |