Narrative:

At FL330 on arrival to aircraft lost right hydraulic quantity and pressure. We followed QRH procedure and secured right hydraulic system. After planning our crew actions, we notified dispatch and ATC. We accomplished a manual gear extension, declared an emergency, and landed at ZZZ on runway 35R after completing all appropriate checklists. ZZZ fire and air carrier maintenance inspected the aircraft on the runway. Air carrier maintenance cleaned up some of the hydraulic fluid, secured the gear doors up, and the aircraft was towed to the gate. Callback conversation with reporter revealed the following information: the reporter stated a cracked hydraulic fitting located in the right wheelwell caused the loss of right main hydraulic system pressure and quantity.

Google
 

Original NASA ASRS Text

Title: AN MD80 AT FL330 DECLARED AN EMER DUE TO LOSS OF R MAIN HYD SYS PRESSURE AND QUANTITY, CAUSED BY CRACKED FITTING IN R WHEELWELL.

Narrative: AT FL330 ON ARR TO ACFT LOST R HYD QUANTITY AND PRESSURE. WE FOLLOWED QRH PROC AND SECURED R HYD SYS. AFTER PLANNING OUR CREW ACTIONS, WE NOTIFIED DISPATCH AND ATC. WE ACCOMPLISHED A MANUAL GEAR EXTENSION, DECLARED AN EMER, AND LANDED AT ZZZ ON RWY 35R AFTER COMPLETING ALL APPROPRIATE CHKLISTS. ZZZ FIRE AND ACR MAINT INSPECTED THE ACFT ON THE RWY. ACR MAINT CLEANED UP SOME OF THE HYD FLUID, SECURED THE GEAR DOORS UP, AND THE ACFT WAS TOWED TO THE GATE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED A CRACKED HYD FITTING LOCATED IN THE R WHEELWELL CAUSED THE LOSS OF R MAIN HYD SYS PRESSURE AND QUANTITY.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.