What was found
AFTER DEPARTURE FROM JNB, NR 1 ENGINE EDP AND ADP LOW HYDRAULIC PRESSURE LIGHTS ILLUMINATED. HYDRAULIC PRESSURE AND QUANTITY INDICATED "0". PERFORMED QRH PROCEDURES FOR AFFECTED HYDRAULIC SYSTEM. DECLARED EMERGENCY INBOUND TO ADD.
- Difficulty date
- March 29, 2011
- Submitted
- April 1, 2011
- Operation
- Air carrier
- Aircraft
- N754SA
- Make and model
- Boeing 747228F
- Aircraft serial
- 21576
- Aircraft time
- 120,307 hours, 23,725 cycles
- System (JASC)
- 3230 · Landing Gear Retraction/Extension System
- Part
- Sequence Valve
- Part number
- 60B002201
- Part serial
- 660
- Condition
- Cracked
- Location
- Landing Gear
- Part time
- 4,312 hours, 934 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- K, J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.