Williamsport Airport
Aircraft Accident/Incident Report

Glen Mawr, Pennsylvania 17758
Wednesday, November 26, 1986 17:44 EST

NTSB Narrative Summary Released at Completion of Accident

DRG ARRIVAL, THE ACFT WAS VECTORED TO INTERCEPT THE ILS RWY 27 LOCALIZER (LOC) BFR REACHING THE MUNCI INITIAL APCH FIX (IAF), WHICH WAS 21.5 MI FM THE RWY. THE ATC CONTROLLER (CTLR) TOLD THE PLT TO MAINT 4000' UNTIL ON THE LOC, THEN CLRD HIM FOR THE APCH. FROM THE IAF, THE MIN ALT ON THE APCH WAS 3700' UNTIL INTERCEPTING THE ILS GLIDE SLOPE (GS) AT THE PICTURE ROCKS NDB (FAF). THE NDB WAS 9.4 MI FROM THE ARPT; THE OUTER MARKER (OM) WAS 4.8 MI FROM THE RWY. AS THE PLT CONTD, HE RPRTD THAT HIS INSTRUMENTS SHOWED HE WAS ON THE GS AT 2700', BUT THAT HE WAS STILL HEADED INBND TWD THE NDB. THE CTLR WARNED THAT THE ACFT SHOULD BE AT 3700' UNTIL REACHING THE NDB & REPEATED THE ALTIMETER SETTING. MOMENTS THERE-AFTER, THE CTLR LOST CONTACT WITH THE ACFT. IT CRASHED NR THE TOP OF A HILL ON WOODED TERRAIN AT AN ELEV OF ABOUT 2400',APRX 9 MI BFR REACHING THE NDB. AN EXAM REVEALED THE ACFT NAV EQUIP WAS PROPERLY SET. NO PREIMPACT MALFUNCTION OR FAIL- URE WAS FND. THE ILS SYS WAS FLT CHECKED & FND TO OPERATE NORMALLY.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 11/26/1986
Event Day of the Week Wednesday
Time of Event 1744
Event Time Zone Eastern Standard Time
Event City GLEN MAWR
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 17758
Event Date Year 1986
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport WILLIAMSPORT
Event Location Nearest Airport ID IPT
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 529
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1750 Eastern Standard Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID IPT
Elevation of weather observation facility 529
Distance of event from weather observation facility (units?) 19
Time Zone of the weather observation EST
Lighting Conditions Dusk
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0
Air Temperature at event time (in degrees celsius) 6
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 12
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) 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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2573
NTSB Notification Source --
NTSB Notification Date Nov 27 1986 12:00AM
NTSB Notification Time 1100
Fiche Number and/or location -used to find docket information 33652
Date of most recent change to record Jan 2 2001 9:14AM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8130A
NTSB Number NYC87FA038
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-28-161
Aircraft Series Identifier PA-28-161
Aircraft Serial Number 8016157
Certified Max Gross Weight 2325
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Nov 3 1986 12:00AM
Airframe hours since last inspection 12
Airframe Hours 1995
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name MAHLON R. ALDRDGE
Aircraft Owner Street Address 419 E. HIGH STREET
Aircraft Owner City JEFFERSON
Aircraft Owner State MO
Aircraft Owner Country
Aircraft Owner Zipcode 65101
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
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 No
Departure Point Same as Event No
Departure Airport Code MCI
Departure City MUNCIE
Departure State IN
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt crash at destination city
Destination Airport Code IPT
Destination City WILLIAMSPORT
Destination State PA
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 27
Runway Length 6449
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --