🛡️ Dropped Objects Prevention & TPI Recommended Replacements
🔧 Certified material supply · TPI verified
📋 Based on Dropped Object Survey reports
⚙️ OEM quality · full traceability
📦 TPI Recommended Replacement Scope dropped object risk areas
🔩 Materials supplied against survey findings
- Bolts & Nuts (structural, flange, high tensile)
- Lock Nuts · Nyloc · Jam Nuts
- Washers (flat, spring, fender)
- Threaded Rods & Studs
- Shackles (Bow, Dee, Anchor)
- Safety Pins · Lynch Pins
- Cotter Pins · Split Pins
- Locking Devices (Nord-Lock, Tab Washers, Lock Plates)
- Wire Rope & Safety Slings
- Clamps (Beam, Pipe, Cable)
- Cable Ties & Clamp Accessories
- Gratings, Grating Clips & Fasteners
- Handrail Fittings & Brackets
- U-Bolts & J-Bolts
- Anchors & Anchor Bolts
- Vibration Dampers & Mounts
- Lighting Fixtures & Mounting Hardware
- All securing / retention materials per survey
✅ Delivered with every supply:
- 📄 MTC
- 📄 COC
- 📄 Third‑party inspection certs
- 📐 Dimensional & visual reports
- 📦 Traceability & packing lists
🧭 TPI identified risk areas · typical replacement zones
- • Crown & Derrick
- • Monkey board / walkways
- • Mast & leg structures
- • Hoisting & drawworks
- • Electrical / inst. supports
- • Piping & pipeline supports
- • Safety & fall protection
- • Lighting, cameras, alarms
- • Handrails, ladders, platforms
- • All dropped object risk areas
📌 Material standards: API · ASTM · ASME · ISO · NACE MR0175 · ABS/DNV/LR/BV
🔁 TPI Recommended Replacement Matrix (critical fasteners & retention)
| Component | TPI replacement trigger | Recommended material / grade | Certification |
|---|---|---|---|
| Structural bolts (high tensile) | Corrosion / wear / loss of torque | ASTM A325 / A490 | MTC + 3.1 |
| Lock nuts · Nyloc | Vibration loosening / thread damage | ASTM A194 Gr.2H / 8 | COC + dimensional |
| Shackles (Bow / Dee) | Deformation / pitting / elongation | ASTM A386 / G209 | 3rd party load test |
| Wire rope & slings | Broken wires / kinking / corrosion | API 9A / IP wire rope | MTC + break load |
| Grating clips & fasteners | Loose clips / missing / fatigue | SS316 / HDG steel | visual + material cert |
| Nord-Lock / tab washers | Loss of preload / corrosion | ASTM A193 B7 / SS | certified lot |
| U-Bolts · J-Bolts | Thread galling / stress corrosion | ASTM A193 B7 / B8M | MTC + PMI |
| Safety pins · lynch pins | Bent / missing / worn | Spring steel / SS | COC |
📋 Survey‑driven replacement planning based on TPI dropped object reports
Immediate replace (critical)
Scheduled replacement (6‑12 mo)
Monitor / inspect (TPI re‑survey)
| Zone / area | TPI finding | Recommended replacement | Priority |
|---|---|---|---|
| Derrick crown platform | Corroded bolts, missing lock washers | Replace all structural bolts + Nord-Lock | HIGH |
| Monkey board walkway | Grating clips loose, some missing | New SS grating clips, safety pins | MEDIUM |
| BOP handling area | Shackle wear, deformed safety pins | Replace shackles (bow) + lynch pins | HIGH |
| Drawworks skid | Vibration damage on lock nuts | Replace with Nyloc + tab washers | MEDIUM |
| Lighting / camera supports | U‑bolts corroded, some cracked | Replace U‑bolts with SS316 | HIGH |
| Handrails & ladders | Loose fittings, missing cotter pins | Renew handrail fittings + split pins | HIGH |
| Pipe supports (mud area) | Clamps worn, some bolts sheared | New beam clamps + high tensile bolts | HIGH |
| Flare boom access | Grating fasteners corroded | Replace with HDG grating clips | MEDIUM |
| Electrical cable trays | Missing cable ties, clamp wear | Replace cable ties & clamps (SS) | LOW |
✅ All replacements are delivered with full traceability, MTC, COC, and third‑party inspection certificates.
📌 TPI survey reference: every material lot is verified against the original dropped object survey report.
⚓ Metal Bureau Middle East LLC-FZ
Supplying certified materials · preventing dropped objects
+971 50 768 6754 · info@metalbureauzfz.com
✅ Certified materials
🔍 Third‑party verified
⚙️ OEM quality
📦 Dubai logistics hub
🧾 Full traceability
Standards: API · ASTM · ASME · ISO · NACE MR0175 · ABS / DNV / LR / BV
Supplied to: Jack‑up rigs · Land rigs · FPSO & FSRUs
🛠️ TPI recommended replacement policy: all materials are sourced from approved OEMs and supplied with Material Test Certificates, Certificate of Compliance, and third‑party inspection reports. Replacements are based on dropped object survey findings to ensure maximum safety and incident prevention.