<< >> NASA ASRS Report 1322126, December 2015

C560XLS first officer reported that the left brake pedal felt spongy. The cable snapped while pumping the brakes and checking the pins on the brake pads.

Attributes
ACN	1322126
Time
Date	201512
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Citation Excel (C560XL)
Operating Under FAR Part	Part 135
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	Brake System
Person 1
Function	First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Maintenance

Narrative:

Repeat discrepancy for 'spongy brakes; left seat; left pedal.' multiple corrective actions 'bled brakes; ops satisfactory.' with the corrective action available to us; we thoroughly checked the brakes by pumping the brake while observing the pins on the brake pads. Cable snapped while checking. Corrosion of the cables should be inspected anytime a brake issue similar to this is reported as a discrepancy and/or an ad should be issued to check all cables more frequently.

Related reports:

• C560XLS captain reported that the elevator trim indicator di...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: C560XLS First Officer reported that the left brake pedal felt spongy. The cable snapped while pumping the brakes and checking the pins on the brake pads.

Narrative: Repeat discrepancy for 'spongy brakes; left seat; left pedal.' Multiple corrective actions 'bled brakes; ops satisfactory.' With the corrective action available to us; we thoroughly checked the brakes by pumping the brake while observing the pins on the brake pads. Cable snapped while checking. Corrosion of the cables should be inspected anytime a brake issue similar to this is reported as a discrepancy and/or an AD should be issued to check all cables more frequently.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.