Allentown – Leesburg
Flight / Schedule
Allentown – Leesburg
Aircraft
Piper PA-61 Aerostar (Ted Smith 601)Registration
N885JC
MSN
61-0826-8163434
Year of Manufacture
1981
Operator
Gary L. BlackmanDate
April 27, 1997 at 08:52 PM
Type
CRASHFlight Type
Private
Flight Phase
Landing (descent or approach)
Crash Site
Plain, Valley
Crash Location
Waterford Virginia
Region
North America • United States of America
Coordinates
39.1859°, -77.6104°
Crash Cause
Human factor
Narrative Report
On April 27, 1997 at 08:52 PM, Allentown – Leesburg experienced a crash involving Piper PA-61 Aerostar (Ted Smith 601), operated by Gary L. Blackman, with the event recorded near Waterford Virginia.
The flight was categorized as private and the reported phase was landing (descent or approach) at a plain, valley crash site.
2 people were known to be on board, 2 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.
Crew on board: 1, crew fatalities: 1, passengers on board: 1, passenger fatalities: 1, other fatalities: 0.
The listed crash cause is human factor. During arrival at night, the flight was being controlled by a developmental controller (DC), who was being supervised by an instructor (IC). The pilot (plt) was instructed to descend & cross the STILL Intersection (Int) at 3,000 ft. STILL Int was aligned with the localizer (loc) approach (apch) course, 10.1 mi from the apch end of runway 17 (rwy 17); the final apch fix (FAF) was 3.9 mi from the rwy. About 5 mi before reaching STILL Int, while on course & level at 3,000 ft, the plt was cleared for a Loc Rwy 17 Apch. Radar data showed the aircraft (acft) continued to STILL Int, then it turned onto the loc course toward the FAF. Shortly after departing STILL Int, while inbound on the loc course, the acft began a descent. Before the acft reached the FAF, the DC issued a frequency change to go to UNICOM. During this transmission, the IC noticed a low altitude alert on the radar display, then issued a verbal low altitude alert, saying, 'check altitude, you should be at 1,500 ft (should have said '1,800 ft' as that was the minimum crossing altitude at the FAF), altitude's indicating 1,200, low altitude alert.' There was no response from the plt. This occurred about 2 mi before the FAF. Minimum descent altitude (MDA) for the apch was 720 ft. The acft struck tree tops at 750 ft, about 1/2 mi before the FAF. The IC's remark 'you should be at 1,500 ft' was based on an expired apch plate with a lower FAF minimum crossing altitude; the current minimum crossing altitude at the FAF was 1,800 ft. Apch control management had not made the current plate available to the controllers. Investigation could not determine whether a current apch plate would have prompted an earlier warning by the controllers.
Aircraft reference details include registration N885JC, MSN 61-0826-8163434, year of manufacture 1981.
Geospatial coordinates for this crash are approximately 39.1859°, -77.6104°.
Fatalities
Total
2
Crew
1
Passengers
1
Other
0
Crash Summary
During arrival at night, the flight was being controlled by a developmental controller (DC), who was being supervised by an instructor (IC). The pilot (plt) was instructed to descend & cross the STILL Intersection (Int) at 3,000 ft. STILL Int was aligned with the localizer (loc) approach (apch) course, 10.1 mi from the apch end of runway 17 (rwy 17); the final apch fix (FAF) was 3.9 mi from the rwy. About 5 mi before reaching STILL Int, while on course & level at 3,000 ft, the plt was cleared for a Loc Rwy 17 Apch. Radar data showed the aircraft (acft) continued to STILL Int, then it turned onto the loc course toward the FAF. Shortly after departing STILL Int, while inbound on the loc course, the acft began a descent. Before the acft reached the FAF, the DC issued a frequency change to go to UNICOM. During this transmission, the IC noticed a low altitude alert on the radar display, then issued a verbal low altitude alert, saying, 'check altitude, you should be at 1,500 ft (should have said '1,800 ft' as that was the minimum crossing altitude at the FAF), altitude's indicating 1,200, low altitude alert.' There was no response from the plt. This occurred about 2 mi before the FAF. Minimum descent altitude (MDA) for the apch was 720 ft. The acft struck tree tops at 750 ft, about 1/2 mi before the FAF. The IC's remark 'you should be at 1,500 ft' was based on an expired apch plate with a lower FAF minimum crossing altitude; the current minimum crossing altitude at the FAF was 1,800 ft. Apch control management had not made the current plate available to the controllers. Investigation could not determine whether a current apch plate would have prompted an earlier warning by the controllers.
Cause: Human factor
Occupants & Outcome
Crew On Board
1
Passengers On Board
1
Estimated Survivors
0
Fatality Rate
100.0%
Known people on board: 2
Operational Details
Schedule / Flight
Allentown – Leesburg
Operator
Gary L. BlackmanFlight Type
Private
Flight Phase
Landing (descent or approach)
Crash Site
Plain, Valley
Region / Country
North America • United States of America
Aircraft Details
Aircraft
Piper PA-61 Aerostar (Ted Smith 601)Registration
N885JC
MSN
61-0826-8163434
Year of Manufacture
1981
