A DC10 CLBING THROUGH FL310 HAS A SUDDEN 2 G PITCH UP EXERTED UPON IT. THE ACFT'S AUTOPLT WAS DISCONNECTED AND THE ACFT RETURNED TO LAX. 6-7 PAX AND FLT ATTENDANTS INJURED. A LOSS OF ACFT CTL.

Narrative

ACFT PITCHED UP. CAPT DISCONNECTED AUTOPLT AND MANUALLY FLEW PLANE; SOME INJURIES. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT MAINT CTL HAD CALLED HIM. THEY STATED THAT THERE HAD BEEN AN AUTOPLT MALFUNCTION; THE DESCRIPTION OF SAME ESCAPED HIS TECHNICAL EXPERTISE SO HE COULD NOT PASS ON ANY OTHER PERTINENT INFO WITH REGARDS TO THE EQUIP PROB. HE DID STATE THAT THE SEAT BELT SIGN HAD BEEN ON; WITH THE FLT ATTENDANTS STANDING IN THE GALLEY; ATTENDING TO SOME PRE- SVC PAX DUTIES. THE INJURIES INCLUDED SOME BONE FRACTURES OF VARIOUS SORTS; INCLUDING FEMURS; AND SOME ANKLE AND BACK INJURIES. ALL THE FLT ATTENDANTS ARE RECOVERING IN AN EXPECTED FASHION. SUPPLEMENTAL INFO FROM ACN 403065: IN ROUTINE CLB (500-700 FPM) ACFT PITCHED UP (APPROX 2 G'S) HARD. WX CLR AND SMOOTH. ALL INSTS (ENG AND FLT) NORMAL. 6-7 INJURIES IN AFT PORTION OF ACFT. RETURNED TO LAX AND FUEL DUMP COORDINATED WITH CTR. RETURN UNEVENTFUL. MEDICAL ASSISTANCE WAITING AT GATE. SEAT BELT SIGN WAS ON THE DURATION OF THIS FLT. SUPPLEMENTAL INFO FROM ACN 402925: SOME PAX AND FLT ATTENDANTS WERE INJURED. CAUSE UNKNOWN. FLT FROM LAX TO HNL.