Runway excursion Accident McDonnell Douglas DC-9-31 N938PR, Tuesday 12 August 1969
ASN logo

Date:Tuesday 12 August 1969
Type:Silhouette image of generic DC93 model; specific model in this crash may look slightly different    
McDonnell Douglas DC-9-31
Registration: N938PR
MSN: 47098/108
Year of manufacture:1967
Total airframe hrs:4395 hours
Fatalities:Fatalities: 0 / Occupants: 119
Other fatalities:0
Aircraft damage: Substantial, repaired
Location:Saint Thomas-Harry S.Truman Airport (STT) -   U.S. Virgin Islands
Phase: Landing
Nature:Passenger - Scheduled
Departure airport:San Juan (unknown airport)
Destination airport:Saint Thomas-Harry S.Truman Airport (STT/TIST)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Caribbean Atlantic Airlines Flight 340, a Douglas DC-9-31, N938PR, was involved in a landing accident at Saint Thomas-Harry S.Truman Airport, Virgin Islands. The aircraft, on its landing rollout, continued 323 feet beyond the far end of runway 9, and came to rest in an automobile repair shop, after striking several vehicles. There were 114 passengers aboard and a crew of five. Evacuation of the aircraft was orderly, with one passenger sustaining minor injuries. Three occupants of the ground vehicles, which were struck by the aircraft after it left the runway, were seriously injured and one was slightly injured.
The weather in the vicinity of the airport had been characterized by intermittent rain showers from early in the morning through the time of the accident, and a total of 2.74 inches of rain was recorded for the 24-hour period. The existence of a considerable amount of standing water on the runway was corroborated by witnesses who stated that the aircraft was churning up heavy water spray on its rollout and did not appear to be decelerating very rapidly .
Near the end of the runway, the aircraft was observed to be fish-tailing which was accompanied by loud sounds of engine reversing and associated popping noises. White tire streaks, typical of those observed in cases of known hydroplaning, were observed in the last 1,400 feet of runway, leading; off the runway into the aircraft tire tracks in the wet, sodded area between the runway and the street.

PROBABLE CAUSE: "The loss of effective braking action caused by dynamic hydroplaning of the landing gear wheels on a wet/flooded runway. Contributing factors were a higher-than-normal touchdown speed and the location of the airport and its topography which permitted excess levels of water to accumulate on the runway."

Accident investigation:
Investigating agency: NTSB
Report number: DCA70A0003
Status: Investigation completed
Duration: 1 year and 3 months
Download report: Final report


Revision history:


The Aviation Safety Network is an exclusive service provided by:
Quick Links:

CONNECT WITH US: FSF on social media FSF Facebook FSF Twitter FSF Youtube FSF LinkedIn FSF Instagram

©2024 Flight Safety Foundation

1920 Ballenger Av, 4th Fl.
Alexandria, Virginia 22314