20001007038359I

Incident

FAA incident report · EMB EMB-145LR · Washington, DC · October 7, 2000

Date: October 7, 2000 · 18:34 local
Place: Washington, DC
Phase of flight: Normal Cruise
Operating rules: Air carrier (Part 121)
Operator: C2XA
Aircraft: N13978
Reported as: EMB EMB145LR
Pilot’s flight hours: 650 in this make and model232 in the last 90 days

N13978Registered now · Embraer EMB-145LRS/N 145180 · Built 1999 Airframe modelEmbraer EMB-145LR Engine modelAllison AE3007C seriesTurbo-fan

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23) BTA3899 southwest bound at FL350 reported moderate turbulence. Shortly thereafter R04 observed BTA3899'S mode c altitude at FL347 and asked the pilot to verify altitude. Bta 3899 responded that he was experiencing wake turbulence due to another aircraft and was requesting lower. R04 replied that lower altitude was not available due to KSS720 who was westbound at FL330. Rta then reported climbing back to FL350, however, loss of standard ATC separation had already occurred with KSS720.

As the FAA filed it

(-23) BTA3899 SOUTHWEST BOUND AT FL350 REPORTED MODERATE TURBULENCE. SHORTLY THEREAFTER R04 OBSERVED BTA3899'S MODE C ALTITUDE AT FL347 AND ASKED THE PILOT TO VERIFY ALTITUDE. BTA 3899 RESPONDED THAT HE WAS EXPERIENCING WAKE TURBULENCE DUE TO ANOTHER AIRCRAFT AND WAS REQUESTING LOWER. R04 REPLIED THAT LOWER ALTITUDE WAS NOT AVAILABLE DUE TO KSS720 WHO WAS WESTBOUND AT FL330. RTA THEN REPORTED CLIMBING BACK TO FL350, HOWEVER, LOSS OF STANDARD ATC SEPARATION HAD ALREADY OCCURRED WITH KSS720.