Individually Owned: 150,657
Corporate Owned: 137,281
Barnstable Muni Airport
Aircraft Accident/Incident Report
Yarmouth, Massachusetts 02675
Friday, July 12, 1991 20:02 EDT
NTSB Narrative Summary Released at Completion of Accident
AFTER RECEIVING CLEARANCE TO LAND, THE PILOT CALLED THAT HE WAS IN TROUBLE AND WAS GOING DOWN. WITNESSES SAW THE AIRPLANE AT A LOW ALTITUDE, AND HEARD THE ENGINE SPUTTERING AND THEN QUIT. THE LEFT WING STRUCK A TREE; THE AIRPLANE IMPACTED THE GROUND AND WAS COMPLETELY DESTROYED BY THE POST CRASH FIRE. ENGINE TEARDOWN REVEALED THAT THE CYLINDER #1 FUEL INJECTOR LINE HAD FAILED AT THE OUTER DIAMETER (OD) SURFACE AT THE MANIFOLD END NEAR THE B-NUT FITTING. METALLURGICAL EXAMINATION INDICATED THAT THE SEPARATION WAS DUE TO FATIGUE CRACKING THAT ORIGINATED AT THE OD SURFACE OF THE TUBE AT THE EDGE WITH THE BRAZED FILLER METAL. INTERGRANULAR CORROSION WAS OBSERVED AT THE FRACTURE ORIGIN WHICH OCCURRED DURING MANUFACTURE, WHEN THE LINE WAS SENSITIZED NEAR THE BRAZING JOINT. THERE WAS NO EVIDENCE OF CLAMPING OF THE TUBE AT MIDPOINT PER THE ENGINEERING DRAWING.
NTSB Probable Cause Narrative
THE FAILURE OF THE NUMBER ONE CYLINDER FUEL INJECTOR LINE DUE TO FATIGUE CRACKING INDUCED BY CORROSION AND PROPAGATED BY CYCLIC LOADING WHICH RESULTED IN A TOTAL LOSS OF ENGINE POWER. THE CORROSION WAS DUE TO THE MANUFACTURER'S PROCESS OF BRAZING THE METAL JOINT, AND THE CYCLIC LOADING WAS DUE TO THE ABSENCE OF A CLAMP TO MINIMIZE THE EFFECT OF VIBRATION. A CONTIBUTING FACTOR WAS THE LACK OF SUITABLE TERRAIN DURING THE SUBSEQUENT FORCED LANDING.
Event Information
| Type of Event | Accident |
| Event Date | 7/12/1991 |
| Event Day of the Week | Friday |
| Time of Event | 2002 |
| Event Time Zone | Eastern Daylight Time |
| Event City | YARMOUTH |
| Event State | MASSACHUSETTS |
| Event Country | -- |
| Zipcode of the event site | 02675 |
| Event Date Year | 1991 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | BARNSTABLE MUNI |
| Event Location Nearest Airport ID | HYA |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | 80 |
| Airport Elevation | 52 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 2005 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 80 |
| Weather Observation Facility ID | HYA |
| Elevation of weather observation facility | 55 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Dusk |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 20000 |
| Sky/Lowest/Cloud Conditions | Thin Broken |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 22 |
| Dew Point at event time (in degress fahrenheit) | 14 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | 0 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | 2 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 467 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 45310 |
| Date of most recent change to record | Dec 12 2000 10:32AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N36272 |
| NTSB Number | NYC91FA178 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | PIPER |
| Aircraft Model | PA-32RT-300T |
| Aircraft Series Identifier | PA-32RT-30 |
| Aircraft Serial Number | 32R-7887030 |
| 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 | 6 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | May 4 1991 12:00AM |
| Airframe hours since last inspection | 20 |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | JOHN & MARY SANTOIN |
| Aircraft Owner Street Address | 36 ROCK MEADOW RD |
| Aircraft Owner City | UXBRIDGE |
| Aircraft Owner State | MA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 01569 |
| Operator is an individual? | -- |
| Operator Name | |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | |
| Operator City | |
| Operator State | |
| Operator Country | |
| Operator Zip code | |
| Operator Code | |
| Owner has at least one certificate | None |
| 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) | Personal |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | MUY |
| Departure City | MARTHAS VINEYAR |
| Departure State | MA |
| Departure Country | |
| Departure Time | 1949 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | |
| Destination City | HYANNIS |
| Destination State | MA |
| Destination Country | |
| Specific Phase of Flight | Approach |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 24 |
| Runway Length | 5430 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |