Accident Cessna 501 Citation I/SP N501DR,
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Date:Saturday 11 February 2006
Time:21:15 LT
Type:Silhouette image of generic C501 model; specific model in this crash may look slightly different    
Cessna 501 Citation I/SP
Owner/operator:David Roeberg
Registration: N501DR
MSN: 501-141
Year of manufacture:1979
Total airframe hrs:6356 hours
Engine model:Pratt & Whitney JT15D-1A
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Fort Pierce, Florida -   United States of America
Phase: Unknown
Nature:Private
Departure airport:Columbia Metropolitan Airport, SC (CAE/KCAE)
Destination airport:Fort Pierce-Saint Lucie County Airport, FL (FPR/KFPR)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
During the landing roll, the pilot was unable to maintain directional control and the airplane swerved side-to side before going off the right side of the runway. The pilot said overhauled brake assemblies had been installed before the accident. He complained that the brakes felt "spongy" and the pedals went "almost to the floor, requiring two or three additional pumps for a hard pedal." He was told that this was "normal" since the airplane was not equipped with power brakes or anti-skid. The brakes were removed and sent to the overhaul facility. They found that both brake assemblies each had one return mechanism binding. The return mechanism had a self adjusting friction bushing meant to slip along the return pin at a predetermined spring pressure. As pressure was applied to the brake, the pressure plate extended toward the number one rotor, pulling the return pins through the swage and tube assemblies and compressing the return springs. Although the swage should move through the tube, one swage on each brake was not moving freely. The brake travel went further than normal because "normal travel" was never set.


Probable Cause: mechanical binding of the normal brake system, rendering directional control impossible. Contributing factors were the improper overhaul, inadequate quality control procedures by the overhaul facility, and the rough terrain.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: MIA06LA052
Status: Investigation completed
Duration:
Download report: Final report

Sources:

NTSB MIA06LA052

Revision history:

Date/timeContributorUpdates
09-Oct-2022 07:08 ASN Update Bot Added
17-Nov-2022 00:01 Ron Averes Updated [Aircraft type, Narrative]

Corrections or additions? ... Edit this accident description

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