A be-400XP captain reported loss of braking effectiveness after landing. Emergency brakes were used ...

Narrative:

On landing rollout I attempted to deploy thrust reversers but only the armed lights illuminated along with the flashing master warning lights. The aircraft seemed to be decelerating normally on brakes but when we got close to taxi speed the brakes lost effectiveness. I announced that we had no brakes and emergency brakes were used to slow the aircraft. After the aircraft was shut down we immediately noticed that the main landing gear struts were extended farther than we had ever seen. This was strange because the struts appeared normal on preflight and this was the second leg we had flown since we had the struts serviced with no problems noted on the previous leg.

Original NASA ASRS Text

Title: A BE-400XP Captain reported loss of braking effectiveness after landing. Emergency brakes were used to stop the aircraft; and after shutdown the flight crew noticed the main landing gear struts appeared to be extended beyond the normal range.

Narrative: On landing rollout I attempted to deploy thrust reversers but only the ARMED lights illuminated along with the flashing MASTER WARNING lights. The aircraft seemed to be decelerating normally on brakes but when we got close to taxi speed the brakes lost effectiveness. I announced that we had no brakes and emergency brakes were used to slow the aircraft. After the aircraft was shut down we immediately noticed that the main landing gear struts were extended farther than we had ever seen. This was strange because the struts appeared normal on preflight and this was the second leg we had flown since we had the struts serviced with no problems noted on the previous leg.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	937640
Time
Date	201102
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Beechjet 400
Flight Phase	Landing
Component
Aircraft Component	Normal Brake System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

A be-400XP captain reported loss of braking effectiveness after landing. Emergency brakes were used to stop the aircraft; and after shutdown the flight crew noticed the main landing gear struts appeared to be extended beyond the normal range.