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NZ 6201

26 June 1975

 

 

Captain F Carter (USAF) in Skyhawk …..

 

“After takeoff from RAAF Williamtown on a night Adex the nose gear indicated unsafe. Airspeed was maintained at 180- 200 knots KIAS while my wingman joined to check me over. He stated that all the gear as up, so I attempted to recycle. Upon lowering the gear all indications were normal and this was confirmed by my wingman. I retracted the gear and none would come up. My wing confirmed that the gear was still down. I put the gear handle down and got positive down and locked indications on all wheels. My wingman checked me over and confirmed all the indications. I contacted Williamtown Approach and asked for radar vector to dump fuel for landing. Approach vectored me out ot sea at 9000ft and told me I was cleared to commence fuel dumping.

I moved the switch to dump and shortly thereafter (2-3 seconds) both hydraulic lights (flight control and utility) started to flicker on and off. At the same time I got violent rudder yaw about 45 degrees and roll. The rudder input rolled me inverted and I could not control the aircraft. I immediately disconnected the flight controls. Shortly thereafter the rudder input ceased. I then jettisoned the fuel tanks which contained 2500lbs of fuel. I declared an inflight emergency and informed approach that I must land asap. I was in contact with 75 Squadron Ops on VHF and they read the NATOPS procedure to me to confirm that I has accomplished all steps. Meanwhile the uncontrollable random inputs continued. They would roll the aircraft to the inverted position and would yaw the nose through 45 degrees. I was prepared to eject because I didn’t think I would be able to control the aircraft on an approach. The only reason I didn’t eject at this time was that as fast as the rudder would subside, I could recover the aircraft. I was in cloud at this time and attempting to steer the aircraft towards Williamtown so that I could point it out to sea and eject over the base. I decided to stay with the aircraft and after a time I would attempt an approach. I stopped dumping fuel at 1500 lbs and set up for a long straight in. An approach and arrest was not possible as there were no facilities. On first approach I could not land because the aircraft was yawing so violently I could not get it lined up with the runway. I circled wide with about 15o bank; I lined up with the runway and flew finals at approximately 170 knots. The rudder inputs continued. I had previously tried the use of stability augmentation to no avail, so the auto pilot was turned off. At 200 feet on final the aircraft rolled 90o of bank but I was able to recover. It was yawing still and a touchdown I was again 45o off heading. The runway was wet. I deployed the chute as I was touching down at approximately 140 knots. The aircraft started broadsiding down the runway to the right. I tried to straighten with the use of left brake and blew the tyre. This straightened the aircraft with the runway. I then started to drift off to the left due to the cross wind, so I blew the right tyre which again aligned me with the runway but I was still drifting left. I called that I was going off the runway (speed estimated at 25 knots) but I was able to stop with the left wing hanging over the edge.

The aircraft was secured.

(Later the pilot was awarded the Air Force Cross).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Created : Saturday, 06 October 2007

 

 

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