St. Mary's Municipal Airport
Aircraft Accident/Incident Report

St Mary's, Pennsylvania 15857
Friday, November 28, 1997 18:10 EST

NTSB Narrative Summary Released at Completion of Accident

The pilot initiated consecutive localizer/DME approaches to the uncontrolled airport after receiving weather information from the AWOS, which was published out of service and broadcasting in the 'Test' mode. Radar data revealed that during both approaches the airplane descended below the MDA for each segment of the approach flown. During the first approach, approximately 10 DME, the airplane was depicted 1,400 feet below the published MDA for that segment and 260 feet below the lowest MDA for the approach. Approximately 8 miles from the airport the pilot advised he was unable to activate the runway lights and received vectors for a second approach. During the second approach, the airplane impacted trees and terrain on a ridge line approximately 500 feet below the MDA for that segment of the approach. Weather was reported to be variable ceiling 100 feet and 1/4 mile visibility, with light drizzle and fog. In the remarks section of the approach plate for the LOC/DME approach it stated: 'Obtain local altimeter on CTAF/AWOS, when not available, procedure not authorized.'

NTSB Probable Cause Narrative

was the pilot's descent below the minimum descent altitude and his failure to comply with published procedures.

Event Information

Type of Event Accident
Event Date 11/28/1997
Event Day of the Week Friday
Time of Event 1810
Event Time Zone Eastern Standard Time
Event City ST MARY'S
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 15857
Event Date Year 1997
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport ST. MARY'S MUNICIPAL
Event Location Nearest Airport ID OYM
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 4
Degrees magnetic from airport 100
Airport Elevation 1934
Weather Briefing Completeness Partial - limited by pilot
Investigator's weather source Weather Observation Facility
Time of the weather observation 1836 Eastern Standard Time
Direction of event from weather observation facility (degrees) 240
Weather Observation Facility ID DUJ
Elevation of weather observation facility 1817
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation EST
Lighting Conditions Night/Dark
Lowest Ceiling Height 100
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Obscured
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0.25
Air Temperature at event time (in degrees celsius) 8
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 260
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Light
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) 1831
NTSB Notification Source --
NTSB Notification Date Nov 28 1997 12:00AM
NTSB Notification Time 2156
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:41PM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6923
NTSB Number NYC98FA035
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 310R
Aircraft Series Identifier 310R
Aircraft Serial Number 310R0220
Certified Max Gross Weight 5200
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 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 10 1997 12:00AM
Airframe hours since last inspection 46
Airframe Hours 6988
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BENJAMIN R. SCHEUFELE
Aircraft Owner Street Address 7439 ROCKWELL AVE
Aircraft Owner City PHILADELPHIA
Aircraft Owner State PA
Aircraft Owner Country
Aircraft Owner Zipcode 19111
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 UGBA
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code RDG
Departure City READING
Departure State PA
Departure Country
Departure Time 1642
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
Destination Airport Code OYM
Destination City
Destination State
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 28
Runway Length 4300
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --