AN ACR FLC FLYING A CL65 AT DAY EXPERIENCED CTL DIFFICULTY DURING THE TKOF ROLL.

Date: 1999-04 · Aircraft: Challenger CL604 · Phase: takeoff

Anomalies: other-unstable-take-off-roll

Synopsis

AN ACR FLC FLYING A CL65 AT DAY EXPERIENCED CTL DIFFICULTY DURING THE TKOF ROLL.

Narrative

WE WERE CLRED FOR TKOF RWY 36 IN DAY; OH. WINDS WERE 320 DEGS AT 7 KTS. IT WAS THE CAPT'S TKOF. THE PLANE WAS AT A LIGHT WT. WE ROLLED DOWN THE RWY. THE NOSE CAME OFF THE GND FOLLOWED BY THE R MAIN THEN THE L. THIS WAS BEFORE V1 SPD. WE BEGAN DRIFTING TOWARD THE GRASS; CRABBED TO THE L IN GND EFFECT. THE PF DIDN'T MAKE ANY IMMEDIATE CORRECTIONS AS WE WERE HDG TOWARD THE EDGE OF THE RWY. I IMMEDIATELY PUT MY HANDS ON THE CTLS AS HE WAS SAYING 'WHAT'S GOING ON? WHAT'S HAPPENING?' BEFORE I COULD TAKE CTL OF THE ACFT; THE CAPT EXCLAIMED 'ENG FAILURE.' THIS SHOCKED ME AND DISTR ME AS I LOOKED AT THE NORMAL INDICATIONS ON THE GAUGES. HE HAD ABSOLUTELY NO REASON TO THINK ENG FAILURE. SO THINKING IT WAS AN ENG FAILURE; HE PITCHED THE NOSE DOWN AND HIS HANDS WENT TO THE THRUST LEVERS. THE NOSE GEAR RECONTACTED THE RWY ALONG WITH THE MAIN GEAR. I STATED THAT THE ENGS WERE FINE AND TO ROTATE. WE ROTATED 20 OR 50 KTS PAST VR AND TOWARDS THE LAST 1/3 OF THE RWY. IT SHOOK US BOTH UP. THE CAPT EXPLAINED HE THOUGHT IT WAS ENG FAILURE BECAUSE HE WAS LOOKING AT THE RUDDER BALL ON TKOF AND SAW IT FULL OUT TO ONE SIDE. THE CAPT'S JUDGEMENT AND INACTION WAS CERTAINLY A CONTRIBUTOR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT THE CAPT WAS RPTED TO COMPANY AND THAT THE CAPT AND THE RPTR WERE RE-EVALUATED FOR PROFICIENCY IN THE SIMULATOR. RPTR FURTHER STATED THAT DISCIPLINARY ACTION WAS TAKEN AGAINST BOTH CREW MEMBERS. IT WAS STATED THAT THE PROCS USED FOR THIS RPTED TKOF INCIDENT WERE THE PROCS TAUGHT AND TESTED BY THE COMPANY INSTRUCTOR PLTS AND CHK PLTS. RPTR WAS NOT SURE OF WHICH RPT THE CALLBACK WAS CONCERNING AS SHE CLAIMS THAT SHE SUBMITS RPTS CONCERNING SERIOUS MATTERS SUCH AS THIS ON A REGULAR BASIS.

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.