Boeing 727-2M7 N721RW

Summary

On 25 July 1984 at about 19:50 local time, a Boeing 727-2M7 registered N721RW was involved in an incident near Minneapolis, Minnesota, United States. 127 people were on board and nobody was injured. No probable cause statement is available for this record.

Date

25 July 1984 at 19:50

Classification

Incident

Location

Minneapolis, Minnesota, United States

Coordinates

Not recorded

Aircraft

Boeing 727-2M7

Registration

N721RW

Category

Airplane

Engines

3

Operator

Not recorded

Operating rule

Part 121: Air Carrier

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Minneapolis → San Francisco

Aircraft damage

Not recorded

Weather

VMC

Light

Day

NTSB number

CHI84IA314

Nobody was injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

THE CREW REPORTED THAT THEY NOTICED A DECREASE IN CLIMB RATE WHILE OVER RAPID CITY, SD, EN ROUTE FROM MSP TO SFO AT FLT LEVEL 310. THE PLT NOTED FUEL BURN WAS APRX 1400 LBS AHEAD OF SCHEDULE. IN-FLT INSPECTION REVEALED THAT THE INBOARD TRAILING EDGE FLAPS HAD FAILED TO RETRACT PROPERLY AFTER TAKEOFF AND REMAINED IN A 7 DEG DOWN POSITION. THE FLT RETURNEDTO MINNEAPOLIS AND LANDED AT 1540 CDT (APRX 50 MINS AFTER THE INCIDENT). A POST FLT INSPECTION DISCLOSED THAT THE INBOARD FLAP CONTROL VALVE HAD FAILED. THE FLT CREW SAID THAT THIS MALFUNCTION HAD OCCURRED ON A PREVIOUS FLT AND HAD BEEN REPORTED. THE FLAPS HAD GROUND CHECKED OK BOTH ON THIS & THE PREVIOUS OCCASION. THIS REPORTED FAILURE WAS CORRECTEDBY REPUBLIC AIRLINES MAINTENANCE BY REPLACEMENT OF A FLAP CONTROL VALVE AND INSPECTION OF THE RIGGING IN ACCORDANCE WITHBOEING MAINTENANCE MANUAL 27-51-51, AFTER THIS INCIDENT.

Quoted verbatim from the NTSB record.