Embraer Phenom 300
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Last 90 Days 150; Flight Crew Total 6500; Flight Crew Type 700
Confusion
Aircraft Equipment Problem Critical
General None Reported / Taken
Aircraft
The flight crew is experienced in the aircraft. The pilot flying has 700 hours as the PIC in type and the pilot observing has 400 hours PIC in type. The flight originated less than an hour away. Landing weight was 16;200 lbs. Landing distance was calculated at 3;740 feet for a wet runway. Rain ended approximately 15 minutes prior to landing. Standing water was not visible on the runway. The aircraft landed at Vref approximately 400 feet beyond the threshold (600 feet prior to the TDZ markings.) Immediately after touchdown; the nose wheel was lowered to the runway and maximum braking was applied. Maximum braking was maintained for the entirety of the landing roll. The aircraft did not decelerate for the majority of the landing roll. During the last 500 feet; the brakes became active and slowed the aircraft to a stop approximately 40 feet prior to the end. Worst case scenario landing performance predicted a maximum ground run of 4100 feet under conditions that were not present at the time of landing. Actual ground run was closer to 4500 feet. This incident was similar to the Phenom 300 excursion in September 2014 at Conroe Texas.
The reporter states that Phenom 300 has a unique braking system that uses a brake control unit to preform the functions of antiskid and autobrakes. The pilot applies maximum braking on touchdown and the unit determines how much braking is actually applied. The brakes appeared normal during taxi in and were normal during the next landing.
Embraer Phenom 300 Captain reported landing on a 5000 foot wet runway and applying maximum braking; to find that braking was almost nil until the last 500 feet of the runway. At that point braking became very effective and the aircraft stopped just before the end of the runway. He believes this incident is similar to an accident a year ago at CXO.