ALTDEV ALT EXCURSION. AN ACR CAPT ATTEMPTS TO OPERATE THE ACFT BELOW THE RECOMMENDED ENVELOPE AND THEN EXCEEDS THE MAX BANK ANGLES CAUSING A STALL; BUT ALLOWS THE FO TO RECOVER THE ACFT.

Date: 1995-07 · Aircraft: B767 Undifferentiated or Other Model

Anomalies: deviation-altitude-excursion-from-assigned-altitude|deviation-discrepancy-procedural-clearance|inflight-event-encounter-loss-of-aircraft-control|inflight-event-encounter-weather-turbulence|other-unspecified

Synopsis

ALTDEV ALT EXCURSION. AN ACR CAPT ATTEMPTS TO OPERATE THE ACFT BELOW THE RECOMMENDED ENVELOPE AND THEN EXCEEDS THE MAX BANK ANGLES CAUSING A STALL; BUT ALLOWS THE FO TO RECOVER THE ACFT.

Narrative

AT FL350 AFTER BEING CLRED TO HOLD AT RIPPI INTXN ON THE SINCA STAR INTO ATL; THE CAPT BEGAN TO SLOW THE ACFT TO THE FMS RECOMMENDED HOLDING AIRSPD OF 208 KTS. I INFORMED THE CAPT THAT ACCORDING TO COMPANY PROCS; THE MINIMUM HOLDING AIRSPD AT FL310 OR ABOVE IS 230 KIAS. THE CAPT ASKED ME WHERE THAT INFO WAS LOCATED. I PROCEEDED TO READ VERBATIM FROM THE PLTS REF MANUAL. AFTER LISTENING TO THE PARAGRAPH; THE CAPT CONTINUED TO OPERATE THE ACFT AT 25- 45 KTS BELOW THE RECOMMENDED HOLDING AIRSPD. JUST PRIOR TO ENTERING THE HOLDING FIX RIPPI; THE CAPT DECIDED THAT HE DIDN'T WANT TO HOLD AS PUBLISHED WITH L TURN BECAUSE OF A TSTM TO THE L. HE REQUESTED R-HAND TURN WITH ZTL AND WAS APPROVED. OVER RIPPI; THE CAPT DISCONNECTED THE AUTOPLT AND ROLLED INTO APPROX 45 DEGS OF BANK TO THE R. BUFFET ON THE JET OCCURRED IMMEDIATELY AS WE BEGAN TO LOOSE ALT. I VERBALIZED STALL; STALL; BUT THE CAPT FAILED TO RESPOND. I PUT MY HANDS ON THE YOKE AND ROLLED OUT SOME BANK SIMULTANEOUSLY ADDING MAX PWR. I THEN SELECTED CLB PWR ON THE THRUST MGMNT SYS PANEL. WE LOST 1200 FT; DSNDING TO 33800 FT MSL AND TOOK 3 MINS TO CLB BACK TO ALT.

More incidents for this aircraft family →

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