AD 75-17-36

AD Final Rules - DRS_75-17-36.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
75-17-36
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Balloon Works, Hot Air Balloons Models Firefly 6, 6B, and 7 Balloons
Subject:
Brass Nipple Failure
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
08/13/1975
Make:
JR Aerosports, LTD
Model:
Firefly 6 | Firefly 6B | Firefly 7
Product Type:
Aircraft
Product Subtype:
Balloon
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 75-17-36
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2326

AD NUMBER:   75-17-36

SUBJECT HEADING:   Airworthiness Directives; Balloon Works, Hot Air Balloons Models Firefly 6, 6B, and 7 Balloons

ACTION:  

SUMMARY:  

DATES:   Effective August 13, 1975.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
75-17-36 BALLOON WORKS, HOT AIR BALLOONS: Amendment 39-2326. Applies to Models Firefly 6, 6B, and 7 with burner S/N 510 through 562.

Before next flight, accomplish the following or an equivalent approved by the Chief, Engineering and Manufacturing Branch, Southern Region.

To avoid separation due to a possible brass nipple failure, install safety wire extending from each of the three corners of the bottom plate to the lower portion of the upper Rego valve body. Assure wires are uniformly tightened.

Within the next five hours of time in service from the effective date of this AD, accomplish the following:

1. Disconnect main burner tubes from manifold.
2. Drill out nine rivets holding pan to the bottom plate.
3. Unhook three burner support springs.
4. Remove upper burner assembly from lower burner assembly.
5. Unscrew nuts to remove pilot light tubes.
6. Clamp square section of Rego valve in vise.
7. Unscrew and remove burner manifold.
8. Inspect nipple. If nipple is steel, reassemble the burner,* if nipple is brass, proceed through the following steps.
9. Unscrew nipple with pipe wrench.
10. Replace brass nipple with steel nipple, Balloon Works P/N A4032B.
11. Reassemble in the reverse order.

Safety wire is not required after steel nipple is installed.

*Use teflon tape or pipe dope type sealant on nipple threads.

This amendment is effective August 13, 1975, and was effective on receipt for all recipients of the air mail letter dated July 24, 1975 which contained this amendment.

FOOTER: